I guess the message is looped by openser to itself (openser does not detect that it is reponsible for this domain) and tat some point the message gets too big (lots of Via headers)

You can verify this with "ngrep -d lo port 5060".

Make sure openser detects your domain as lokal domain, eg: alias=ipcsip.org

regards klaus

Steven Wu schrieb:

Hi, I just want use FQDN in my networking environment. My SJPhone use FQDN register to OpenSER 1.2.2 but was rejected by 513 Message to big. However it can be registed use the same profile just replace FQDN to IP address. The DNS query process worked fine and got the right IP address.

My environment elments looks like: OpenSER 1.2.2 at host 192.168.1.120 / ipcsip.org DNS server at host 10.57.39.53 SJPhone at host 192.168.1.105

REGISTER package looks like:

192.168.1.105 -> 192.168.1.120 REGISTER sip:ipcsip.org:5062 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.105;branch=z9hG4bKc0a801690000001f48bf8e4700006b9400000002;rport From: "unknown" sip:1000@ipcsip.org:5062;tag=328715c58a2 To: sip:1000@ipcsip.org:5062 Contact: sip:1000@192.168.1.105 Call-ID: 444CD1265B43407EBBF2B26BD4C01C6B0xc0a80169 CSeq: 1 REGISTER Max-Forwards: 70 User-Agent: SJphone/1.65.377a (SJ Labs) Content-Length: 0

192.168.1.120 -> 192.168.1.105 SIP/2.0 513 Message too big Via: SIP/2.0/UDP 192.168.1.105;branch=z9hG4bKc0a801690000001f48bf8e4700006b9400000002;rport=5060 From: "unknown" sip:1000@ipcsip.org:5062;tag=328715c58a2 To: sip:1000@ipcsip.org:5062;tag=2560d490c3265ff35995c6bbde62a7c3.b7d8 Call-ID: 444CD1265B43407EBBF2B26BD4C01C6B0xc0a80169 CSeq: 1 REGISTER Server: OpenSER (1.2.2-notls (i386/linux)) Content-Length: 0

I got same result evenif enabled dns & rev_dns in openser.cfg (dns=yes rev_dns=yes). So, What wrong with me? Coudle some give me some instructions?

Best regards, Steven Wu

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El Thursday 04 September 2008 09:46:47 Steven Wu escribió:

I just want use FQDN in my networking environment. My SJPhone use FQDN register to OpenSER 1.2.2 but was rejected by 513 Message to big. However it can be registed use the same profile just replace FQDN to IP address. The DNS query process worked fine and got the right IP address.

This occurs when the DNS points the domain to your OpenSer IP but OpenSer doesn't now that this domain is himself, so when it receives the request it performs a DNS query for that domain and forwards the request to that IP (OpenSer again!!!), so you get an infinite loop and each step the size is bigger since OpenSer adds a "Via" header in each step, until the request size is too big.

Add:

alias=my_domain

or add your domain in your /etc/hosts.

El Thursday 04 September 2008 11:22:38 Steven Wu escribi: Hi I?aki,

I had tried add the domain in /etc/hosts. But it not work. Just add ailas=domain in profile works fine.

...

Yes, true. As Klaus has said you must active "auto_alias" in order OpenSer to read /etc/hosts.

Thanks!

-- Iaki Baz Castillo ibc@in.ilimit.es

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