05-31-2010 07:22 AM - edited 03-15-2019 11:01 PM
Is it possible to compress the RTP, UDP and IP headers of a voice packet under a VPN IPSEC connection? These headers are encrypted when IPSEC is set to use ESP.
Best Regards.
05-31-2010 07:41 AM
I believe these two protocols are incompatible. cRTP compressess the IP/UDP/RTP headers. ipsec encrypts these headers. So, by the time the RTP compression process could be engaged it cannot accomplish it's job successfully.
See this reference:
http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/V3PN_SRND/v3p_comp.html#wp1035253
And this netpro doc:
https://supportforums.cisco.com/docs/DOC-2498/version/2
HTH.
Regards,
Bill
Please remember to rate helpful posts.
Please remember to rate helpful responses and identify
05-31-2010 08:12 AM
I suspected that it would not be possible with ESP as the encryption process. I´ve confirmed now. Thanks for the help.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: