Recently in testing it was discovered that the R200 and R201 running latest firmware ignore the Only Recv Request From Server / Server Address fields. If I enable TCP with this on and try making a sip call from my desktop (not in the server IP list) the call rings/goes through. (Verified via PCAPs) If I enable UDP, the ATA never responds to the invites.
Please send below details to my email Id( email@example.com)
- Networks of topology.
- Device configuration.
- The packet capture of WAN interface in below cases.
- If TCP Transport is enabled
- if UDP Transport is enabled
E-mailed you pcaps/info. Verified it on a second test ATA again using a private and a public IP. Had multiple customers reporting the same issue too, changing back to UDP transport fixed the server IP Address filter applying.