Transport-Related Protocol-Design Issues - Lars Eggert
Transport-Related Protocol-Design Issues - Lars Eggert
Transport-Related Protocol-Design Issues - Lars Eggert
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NAT and Middlebox Traversal<br />
Middleboxes are problematic<br />
Basically: enforce directionality on communication<br />
establishment – client/server paradigm OK, others less so<br />
– Complex communication establishment procedures<br />
– Relays, coordination, etc.<br />
– There are some building blocks available (STUN/TURN/ICE)<br />
– Also consider address family translations (IPv6 to IPv4)<br />
Unless you really aren’t playing nice with middleboxes:<br />
– Structure the protocol design for this from the start!<br />
IETF-73, Minneapolis, MN, USA WG Chairs Training Lunch 15<br />
November 19, 2008<br />
Top right<br />
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customer<br />
partner lo<br />
See Best<br />
for exam
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