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Bug ID	12604
Summary	Proposal for dissection of BGP capability code 131
Product	Wireshark
Version	Git
Hardware	All
OS	All
Status	UNCONFIRMED
Severity	Minor
Priority	Low
Component	Dissection engine (libwireshark)
Assignee	bugzilla-admin@wireshark.org
Reporter	g.djavadyan@gmail.com

Created attachment 14711 [details]
BGP Open packet

Build Information:
Version 2.1.1-git (v2.1.1rc0-430-g5758aa5 from unknown)
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Dear Wireshark developers,

According to [1] and [2], assigned code for Multisession BGP Capability is 68,
but it seems Cisco routers used private code 131 for the same purpose before
the standardized code has been assigned. Below is the debug message for
received Open message with capability code 131:

BGP: 10.255.255.2 passive rcvd OPEN w/ optional parameter type 2 (Capability)
len 3
BGP: 10.255.255.2 passive OPEN has CAPABILITY code: 131, length 1
BGP: 10.255.255.2 passive OPEN has MULTISESSION capability, without grouping

The BGP Open message packet is attached.

[1] https://tools.ietf.org/html/draft-ietf-idr-bgp-multisession-04#section-3
[2] http://www.iana.org/assignments/capability-codes/capability-codes.xhtml


Thanks!
Garri

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