IOS automatically does SIP-ALG when doing nat, is this enabled or not? The SIP-ALG is broken and I have always recommended people to turn it off.
- Jared On Jan 8, 2013, at 7:05 PM, Andrew Yager <[email protected]> wrote: > Hi, > > We have a client using a Cisco 867 with SIP based VoIP phones behind it (not > CCM). > > Each time the phones perform a new SIP request a new entry is created in the > NAT table on a different port, which very quickly floods the NAT table and > crashes the router. > > We've tried with c860-universalk9-mz.150-1.M6 and > c860-universalk9-mz.151-4.M5 but are seeing the same behaviour. > > Client nat config is relatively standard: > > ip nat inside source list 10 interface Dialer0 overload > ip nat inside source static tcp 10.1.1.100 5900 interface Dialer0 5900 > ip nat inside source static tcp 10.1.1.100 1723 interface Dialer0 1723 > > access-list 10 permit 10.1.1.0 0.0.0.255 > > Has anyone seen this issue on this series of routers and/or know if it's an > IOS bug? Any fixes or workarounds or working IOS versions? > > Thanks, > Andrew > > -- > Andrew Yager, Managing Director (MACS Snr CP BCompSc MCP MCE JNCIA-Junos) > Real World Technology Solutions Pty Ltd - IT people you can trust > ph: 1300 798 718 or (02) 9037 0500 > fax: (02) 9037 0591 mob: 0405 152 568 > http://www.rwts.com.au/ > > > > > > > > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
