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<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D">Χειρόγραφα
</span><span style="font-size:11.0pt;color:#1F497D">scripts</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">. Έχουμε μια βάση που κρατάμε τα
</span><span style="font-size:11.0pt;color:#1F497D">as</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">-</span><span style="font-size:11.0pt;color:#1F497D">set</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">/</span><span style="font-size:11.0pt;color:#1F497D">autnum</span><span style="font-size:11.0pt;color:#1F497D">
<span lang="EL">που μας ενδιαφέρουν και κάθε μέρα τα </span></span><span style="font-size:11.0pt;color:#1F497D">prefix</span><span style="font-size:11.0pt;color:#1F497D">
</span><span style="font-size:11.0pt;color:#1F497D">lists</span><span style="font-size:11.0pt;color:#1F497D">
<span lang="EL">φτιάχνονται εκ νέου με το </span></span><span style="font-size:11.0pt;color:#1F497D">bgpq</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">3. Αν κάπου παρατηρηθεί διαφορά με της προηγούμενης ημέρας, ενημερώνεται αυτόματα με
</span><span style="font-size:11.0pt;color:#1F497D">email</span><span style="font-size:11.0pt;color:#1F497D">
<span lang="EL">το αρμόδιο τμήμα για την τελευταία έκδοση της </span></span><span style="font-size:11.0pt;color:#1F497D">prefix</span><span style="font-size:11.0pt;color:#1F497D">
</span><span style="font-size:11.0pt;color:#1F497D">list</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">. Ιστορικότητα δεν υπάρχει ( μπορεί να βγει βέβαια από το
</span><span style="font-size:11.0pt;color:#1F497D">rancid</span><span style="font-size:11.0pt;color:#1F497D">
<span lang="EL">που κρατάει τα </span></span><span style="font-size:11.0pt;color:#1F497D">configs</span><span lang="EL" style="font-size:11.0pt;color:#1F497D"> ) , αλλά δε νομίζω ότι είναι το ζητούμενο εδώ. Θα μπορούσε να μπαίνει και να περνάει την τελευταία
</span><span style="font-size:11.0pt;color:#1F497D">prefix</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">-</span><span style="font-size:11.0pt;color:#1F497D">list</span><span style="font-size:11.0pt;color:#1F497D">
<span lang="EL">αυτόματα με </span></span><span style="font-size:11.0pt;color:#1F497D">clogin</span><span style="font-size:11.0pt;color:#1F497D">
<span lang="EL">ή κάποιο </span></span><span style="font-size:11.0pt;color:#1F497D">api</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">, αλλά δεδομένου του μεγέθους μας, δε έχω βρει σοβαρό λόγο να ασχοληθώ με τέτοιου επιπέδου αυτοματισμούς ακόμα.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">My thoughts and words are my own.<br>
<br>
Kind Regards,<br>
<br>
Spyros<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> grnog-request@lists.grnog.gr [mailto:grnog-request@lists.grnog.gr]
<b>On Behalf Of </b>Dimitris Kalogeras<br>
<b>Sent:</b> Tuesday, June 16, 2015 6:11 PM<br>
<b>To:</b> grnog@lists.grnog.gr<br>
<b>Subject:</b> Re: [grnog] Το leak της ημέρας ( AS4788 -> AS3549 )<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Καλησπέρα Σπύρο,<o:p></o:p></p>
<div>
<p class="MsoNormal">On 16/6/2015 4:56 μμ, Spyros Kakaroukas wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D">Δεν έχω κάποια άμεση σχέση με την
</span><span style="font-size:11.0pt;color:#1F497D">Level</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">3, αλλά από ότι ακούγεται σε άλλες λίστες, το
</span><span style="font-size:11.0pt;color:#1F497D">IRR </span><span lang="EL" style="font-size:11.0pt;color:#1F497D">εργαλείο τους που αντλεί δεδομένα από δική τους βάση έχει σταματήσει να λειτουργεί εδώ και ~8 μήνες.</span><o:p></o:p></p>
</blockquote>
<p class="MsoNormal"><br>
Πριν απο δύο χρόνια καναμε με τον Σπύρο Παπαγεωργίου μια εργασία ( ας το πουμε as-topology detection per country - ) χρησιμοποιώντας γνωστά και διαθέσιμα whois . H Level 3 είναι ο μεγαλύτερος πάροχος ( per # peerings) και έχει ιδιωτικό whois
<br>
το οποίο κάνει peering επειδή το αντίστοιχο του RIPE-Whois-database έχει μικρό κάτω όριο για την καταγραφή των peerings.<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D">Συνεπώς είχαν κάποτε λάβει κάποια μέτρα και για κάποιον άγνωστο λόγο σταμάτησαν. Αν μη τι άλλο αυτό τους προκαλεί και αυξημένο φόρτο εργασίας καθώς ο κάθε πελάτης που έχει φίλτρο (
ναι, σε αρκετούς έχουν ) θα πρέπει να απασχολήσει ανθρώπινους πόρους κάθε φορά που θέλει να διαφημίσει ένα νέο δίκτυο/πελάτη.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D">Πρακτικά, χρησιμοποιώ κλασσικό
</span><span style="font-size:11.0pt;color:#1F497D">community tagging </span><span lang="EL" style="font-size:11.0pt;color:#1F497D">για να ξεχωρίσω
</span><span style="font-size:11.0pt;color:#1F497D">transit</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">/</span><span style="font-size:11.0pt;color:#1F497D">peer</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">/</span><span style="font-size:11.0pt;color:#1F497D">customer
routes </span><span lang="EL" style="font-size:11.0pt;color:#1F497D">με κάποια πολύ γενικά
</span><span style="font-size:11.0pt;color:#1F497D">outbound filters</span><span lang="EL" style="font-size:11.0pt;color:#1F497D"> καθώς και
</span><span style="font-size:11.0pt;color:#1F497D">automatically</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">-</span><span style="font-size:11.0pt;color:#1F497D">generated inbound prefix</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">-</span><span style="font-size:11.0pt;color:#1F497D">filters
</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">σύμφωνα με </span><span style="font-size:11.0pt;color:#1F497D">as</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">-</span><span style="font-size:11.0pt;color:#1F497D">set
</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">ή </span><span style="font-size:11.0pt;color:#1F497D">aut</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">-</span><span style="font-size:11.0pt;color:#1F497D">num</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">
. Στο κομμάτι της υλοποίησης, το πρώτο είναι αυτονόητο και το δεύτερο το έχουμε φτιάξει με το
</span><span style="font-size:11.0pt;color:#1F497D">bgpq</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">3 και λίγο
</span><span style="font-size:11.0pt;color:#1F497D">scripting</span><span lang="EL" style="font-size:11.0pt;color:#1F497D">.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal">έχεις κάποιο εργαλείο το οποίο συγκρίνει αυτό που υπάρχει στο router με αυτό που θα έπρεπε να είναι σαν αποτέλεσμα του script (π.χ κάποιο rancid -like )?<br>
Δ<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"><span lang="EL" style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">My thoughts and words are my own.<br>
<br>
Kind Regards,<br>
<br>
Spyros</span><o:p></o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
<a href="mailto:grnog-request@lists.grnog.gr">grnog-request@lists.grnog.gr</a> [<a href="mailto:grnog-request@lists.grnog.gr">mailto:grnog-request@lists.grnog.gr</a>]
<b>On Behalf Of </b>Dimitris Kalogeras<br>
<b>Sent:</b> Tuesday, June 16, 2015 4:38 PM<br>
<b>To:</b> <a href="mailto:grnog@lists.grnog.gr">grnog@lists.grnog.gr</a><br>
<b>Subject:</b> Re: [grnog] Το leak της ημέρας ( AS4788 -> AS3549 )</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> Καλημέρα/σπέρα,<br>
<br>
επανέρχομαι στο θέμα και στο Link που είχε στείλει ο Σπύρος <br>
(<a href="https://www.bgpmon.net/massive-route-leak-cause-internet-slowdown/">https://www.bgpmon.net/massive-route-leak-cause-internet-slowdown/</a>)<br>
<br>
Μέσα φαίνεται λοιπόν οτι υπάρχουν δύο ανεξάρτητες αμέλειες δύο ISPs <br>
η μία είναι της Malaysia Telecom και η άλλη της Level 3..<br>
(<span style="font-size:10.5pt">Level3 erroneously accepted these prefixes and announced these to their peers and customers...
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">και</span><span style="font-size:10.5pt"><br>
The 176,000 leaked prefixes are likely all Telekom Malaysia’s customer prefixes combined with routes they learned from peers. )<br>
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Προσω</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ικά</span><span style="font-size:10.5pt">
π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ιστεύω</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">οτι</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">όταν</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">το</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">λάθος</span><span style="font-size:10.5pt"> "</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">σκάσει</span><span style="font-size:10.5pt">"
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">στον</span><span style="font-size:10.5pt"> Tier1 provider
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">θα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ε</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ακολουθήσουν</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">αυτά</span><span style="font-size:10.5pt"> π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ου</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">είδαμε</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">και</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ο</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ως</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">σωστά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">εί</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ε</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ο</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Φαίδων</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">δεν</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μ</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ορεί</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κάνει</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κάτι</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">η</span><span style="font-size:10.5pt"> Level3 (π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ρολη</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τικά</span><span style="font-size:10.5pt">)
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μ</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ορεί</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μην</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">βοηθά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">και</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">η</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">υφιστάμενη</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κατάσταση</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">της</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τεχνολογίας</span><span style="font-size:10.5pt">.<br>
<br>
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Α</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ο</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">την</span><span style="font-size:10.5pt"> π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">λευρά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">της</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">η</span><span style="font-size:10.5pt"> Malaysia telecom π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ραγματικά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">θα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μ</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ορούσε</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κάνει</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κάτι</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">αλλά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">έχει</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">αμελήσει</span><span style="font-size:10.5pt">.
<br>
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Αρα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">το</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">θέμα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">είναι</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τι</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κάνουν</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">οι</span><span style="font-size:10.5pt"> Tier2/1 providers
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">για</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μην</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">δημιουργήσουν</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τέτοιες</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">καταστάσεις</span><span style="font-size:10.5pt">.
<br>
<br>
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Αυτό</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">θα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ήθελα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ρωτήσω</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μέλη</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">αυτής</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">της</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">λίστας</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ως</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τεχνικοί</span><span style="font-size:10.5pt">-</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μηχανικοί</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">των</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">εγχώριων</span><span style="font-size:10.5pt"> ISP
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">εφόσον</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">αυτό</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">δεν</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">αφορά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ε</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ιχειρηματικά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μυστικά</span><span style="font-size:10.5pt">.
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Τι</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μέτρα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">έχουν</span><span style="font-size:10.5pt"> in place ?<br>
<br>
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Εχω</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">την</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">εντύ</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ωση</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">λοι</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">όν</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">οτι</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κάθε</span><span style="font-size:10.5pt"> Tier2/1
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">για</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">μ</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ορέσει</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">εφαρμόσει</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τεχνικές</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">α</span><span style="font-size:10.5pt">π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">οφυγής</span><span style="font-size:10.5pt">
leaking </span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">χρειάζεται</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">κάνει</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ένα</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">διαχωρισμό</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">των</span><span style="font-size:10.5pt"> announcements
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">σε</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">α</span><span style="font-size:10.5pt">)
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">δικά</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">της</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">β</span><span style="font-size:10.5pt">) π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ελατών</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">γ</span><span style="font-size:10.5pt">) dual homed π</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">ελατών</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">της</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">και</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">να</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">εφαρμόζει</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">διαφορετικές</span><span style="font-size:10.5pt">
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">τεχνικές</span><span style="font-size:10.5pt">.<br>
<br>
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Χαιρετισμούς</span><span style="font-size:10.5pt">,<br>
</span><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#474747;background:white">Δημήτρης</span><span style="font-size:10.5pt"><br>
<br>
<br>
<br>
</span><o:p></o:p></p>
<div>
<p class="MsoNormal">On 13/6/2015 1:56 μμ, Faidon Liambotis wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">On 06/13/15 12:45, Andreas Polyrakis wrote: <br>
<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal">Εκτός από το strict filtering που σωστά αναφέρθηκε -- το οποίο δεν
<br>
δουλεύει τόσο καλά εκτός RIPE region ή για "μεγάλα" peerings -- υπάρχει <br>
και το RPKI. Το RPKI δεν είναι επίσης πανάκεια· δεν αντιμετωπίζει καλά <br>
κακόβουλες ανακοινώσεις, ούτε leaking, αλλά βοηθάει πολύ σε <br>
misconfigurations ή typos. <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
Ναι, όπως λες όμως... δεν βοήθησε καθόλου εδώ. Τα routes που ανακοινώνονταν διατηρούσαν το origin τους (π.χ. 3549 4788 15169) και ως εκ τούτου το RPKI δεν προστάτευσε κανέναν από αυτούς που έχουν ενεργοποιήσει validation.
<br>
<br>
Φ. <br>
<br>
<br>
<o:p></o:p></p>
</blockquote>
<p class="MsoNormal"><br>
<br>
<br>
<o:p></o:p></p>
<pre>-- <o:p></o:p></pre>
<pre>------------------------<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Dimitrios K. Kalogeras<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Electrical Engineer Ph.D.<o:p></o:p></pre>
<pre>Network Engineer<o:p></o:p></pre>
<pre>Netmode NTUA Lab<o:p></o:p></pre>
<pre>_____________________________________<o:p></o:p></pre>
<pre>skype: aweboy<o:p></o:p></pre>
<pre>voice: +30-210-772 1448<o:p></o:p></pre>
<pre>fax: +30-210-772 1866<o:p></o:p></pre>
<pre>e-mail: <a href="mailto:D.Kalogeras@noc.ntua.gr">D.Kalogeras@noc.ntua.gr</a><o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:6.0pt;font-family:"Verdana","sans-serif";color:gray">This e-mail and any attachment(s) contained within are confidential and are intended only for the use of the individual to whom they are addressed. The information
contained in this communication may be privileged, or exempt from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited.
If you have received this communication in error, please notify the sender and delete the communication without retaining any copies. Connecticore SA is not responsible for, nor endorses, any opinion, recommendation, conclusion, solicitation, offer or agreement
or any information contained in this communication. </span><o:p></o:p></p>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<pre>-- <o:p></o:p></pre>
<pre>------------------------<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Dimitrios K. Kalogeras<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Electrical Engineer Ph.D.<o:p></o:p></pre>
<pre>Network Engineer<o:p></o:p></pre>
<pre>Netmode NTUA Lab<o:p></o:p></pre>
<pre>_____________________________________<o:p></o:p></pre>
<pre>skype: aweboy<o:p></o:p></pre>
<pre>voice: +30-210-772 1448<o:p></o:p></pre>
<pre>fax: +30-210-772 1866<o:p></o:p></pre>
<pre>e-mail: <a href="mailto:D.Kalogeras@noc.ntua.gr">D.Kalogeras@noc.ntua.gr</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
</div>
<br>
<br>
<p class="MsoNormal"><span style="font-size:6pt;font-family:"Verdana","sans-serif";color:gray">This e-mail and any attachment(s) contained within are confidential and are intended only for the use of the individual to whom they are addressed. The information
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If you have received this communication in error, please notify the sender and delete the communication without retaining any copies. Connecticore SA is not responsible for, nor endorses, any opinion, recommendation, conclusion, solicitation, offer or agreement
or any information contained in this communication. </span></p>
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