[Kamailio-Users] Extra byte in Content-length header

[Jeff Brower]

Iñaki-

> El Jueves, 11 de Febrero de 2010, Vikram Ragukumar escribió:
>> Hello,
>>
>> Just following up. Here is a link to a screen capture from Wireshark
>> that shows the extra byte in the Content Length header field of the
>> Register message.
>>
>> http://signalogic.com/images/SMC7004VWBR_UDP_payload_with_SIP_message_gets_
>> modified.jpg
>>
>> We use an SMC7004VWBR router, but tech support at SMC said the router
>> does not support SIP. Has anybody else seen a router make such a mod to
>> a SIP message ?
>
>
> I don't know that router but have dealed with other SMC routers and they *do*
> include SIP-ALG built-in, and the worst: it cannot be dissabled in any way!
>
> Check at this page (the list of SIP-ALG routers):
>   http://www.voip-info.org/wiki/view/Routers+SIP+ALG

Yes we have seen that page, but it does not mention the SMC7004VWBR specifically.  If it did we could send it to SMC
tech support.

> So, if I understand correctly the Content-Length has the form:
>   Content-Length: 0 0

Yes.  An extra zero (0x30).

-Jeff