[Users] receiving msgs with invalid port numbers

[Klaus Darilion]

Papadopoulos Georgios wrote:
> Hello,
> 
> Sometimes Openser receives REGISTER messages where the port in the Via
> and in the Contact is invalid (some number greater than 65536). Does
> anyone know what causes this? Is it just a bug at the user agent side
> that I cannot do anything about?

Yes. AFAIK this often happens with bad implemented ALGs (NAT router and 
DLS modems with "SIP helper"). It usually helps to deactivate all the 
SIP-helper stuff in the NAT router.

klaus


> 
> thank you for any help
> 
> George
> 
> 
> 
>  3(24398) ERROR: parse_via: invalid port number <101160>
>  3(24398) ERROR: parse_via on: <SIP/2.0/UDP
> 62.1.33.62:101160;branch=z9hG4bKYw5qCaB5TTD1PAvN
> Max-Forwards: 70
> User-Agent:    IP PHONE 3 V1.49.002 CFG0 
> From: "psalidas" <sip:psalidas at i-call.gr>;tag=He0iTAjdDXQBQh0M
> To: "psalidas" <sip:psalidas at i-call.gr>
> Call-ID: MCk3KLwds4XOTvqi at 62.1.33.621
> CSeq: 8692 REGISTER
> Contact: <sip:psalidas at 62.1.33.62:101160>
> Expires: 60
> Content-Length: 0
> 
>  3(24398) ERROR: parse_via parse error, parsed so far:<SIP/2.0/UDP
> 62.1.33.62:101160;branch=z9hG4bKYw5qCaB5TTD1PAvN
>  3(24398) ERROR: get_hdr_field: bad via
>  3(24398) ERROR: parse_msg: message=<REGISTER sip:i-call.gr SIP/2.0
> Via: SIP/2.0/UDP 62.1.33.62:101160;branch=z9hG4bKYw5qCaB5TTD1PAvN
> Max-Forwards: 70
> User-Agent:    IP PHONE 3 V1.49.002 CFG0 
> From: "psalidas" <sip:psalidas at i-call.gr>;tag=He0iTAjdDXQBQh0M
> To: "psalidas" <sip:psalidas at i-call.gr>
> Call-ID: MCk3KLwds4XOTvqi at 62.1.33.621
> CSeq: 8692 REGISTER
> Contact: <sip:psalidas at 62.1.33.62:101160>
> Expires: 60
> Content-Length: 0
> 
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