Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

"H.323 Annex E".

Has anybody known where Cisco uses "H.323 Annex E". Recently there is a psirt announced on the following link

http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml

one of the vulnerability is attacked on "H.323 Annex E" which is udp 2517. But I never seen this being used in Cisco world. Anybody knows this? Thanks

3 REPLIES
Green

Re: "H.323 Annex E".

H.323 Annex E - Faster Connection Method

This Annex specifies the optional use of UDP instead of TCP, and the optional use of fixed-format packet encoding instead of the

more processor-intensive ASN.1 encoding.

It is supported from 12.2(11)T.

conf t

voice service voip

h323

session transport udp

For restrictions refer this,

http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a0080087b94.html#1019345

New Member

Re: "H.323 Annex E".

Thanks. I know that by default it uses tcp 1720. So when we configure it as udp, it will use udp port 2517?

Green

Re: "H.323 Annex E".

YEs

121
Views
0
Helpful
3
Replies
CreatePlease to create content