[OpenSER-Users] IPv6 issues in openser

Klaus Darilion klaus.mailinglists at pernau.at
Tue Apr 22 17:31:16 CEST 2008


Hi!

Following some IPv6 issues:

1) I configured openser (1.3.0) to listen on an IPv6 address too:
   listen = udp:[2001:7b8:2ff:1da::2]:5060
   listen = tcp:[2001:7b8:2ff:1da::2]:5060

I also configured bind9 and apache2 to listen on this IPv6 address. But 
somehow openser does it different then others:

# netstat -anp|grep 2001
tcp6       0      0 2001:7b8:2ff:1da:::5060 :::*
tcp6       0      0 2001:7b8:2ff:1da::2:80  :::*
tcp6       0      0 2001:7b8:2ff:1da::2:53  :::*
udp6       0      0 2001:7b8:2ff:1da::2:53  :::*
udp6       0      0 2001:7b8:2ff:1da:::5060 :::* 


As you see, openser binds to [2001:7b8:2ff:1da::] whereas others binds 
to [2001:7b8:2ff:1da::2]. Actually this didn't caused any problems, but 
I still surprised about the difference. Can someone explain me please 
this behavior?


2) I found out that openser allows this syntax too (without []).
   listen = udp:2001:7b8:2ff:1da::2

I think it would be better to disallow that syntax and require [] as it 
is ambiguous when specifying the port too, e.g.:
   listen = udp:2001:7b8:2ff:1da::2:5060


3) Looks like the syntax in the socket column of the location table is 
not IPv6 compatible:
ERROR:usrloc:parse_phostport:  too many colons in 
udp:2001:7B8:2FF:1DA:0:0:0:2:5060
ERROR:usrloc:dbrow2info: bad socket <udp:2001:7B8:2FF:1DA:0:0:0:2:5060>
ERROR:usrloc:preload_udomain: sipping record for klaus1 in table location

I guess the socket should use [] for IPv6 addresses too.

regards
Klaus





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