[Serusers] SER, ATA-186 & Cisco AS5300

[Linus Surguy]

> > I hope this is not an FAQ, I've tried searching the available info.
Using
> > Ser 0.8.12, Cisco AS5300 with IOS 12.3.6 & a ATA-186.
> >
> > ATA-186 (behind NAT) -> SER -> AS5300
> >
> > On the INVITE, we get:
> >
> > 10w6d: httpish_msg_process_network_msg: Content Length 261, Bytes
> > Remaining 256
> > 10w6d: HandleUdpSocketReads: SIP Message incomplete, trashed
>
> If you are using Cisco NAT, I'd suggest sticking a sniffer either side of
> it and checking it's not trashing things. The default Cisco NAT helper, at
> least on some IOS versions, is less than helpful and trashes packets
> (specifically truncated SIP_INFO packets so that their content length is
> zero). This causes incomplete packets. Turning off nat-helper fixes this
> (it is on by default).

I havnt turned on anything specific, I've placed the 'public IP' in the
Cisco ATA-186 config, but havnt turned on any other NAT features, either in
SER or the AS5300 (I know that RTP might currently break) - and I just
wanted to get the initial invite to work. Specifically, what do you think I
should turn off?

Linus