7 Dec
2006
7 Dec
'06
12:09 p.m.
Aaron Daubman wrote:
Greetings,
I've found some decent documentation on secure multilateral peering
for OpenSER, however I'm looking for something more simple.
In a lab environment, I'm looking to set up four simulated
geographically diverse networks all peering across a common backbone.
Each of the four networks should have its own SIP registrar. What I'm
looking for is a quick guide on how to allow each of the four
registrars tell the other three what prefixes are registered with what
address so that all SIP UAs can dial just an extension to reach UAs
in any of the four networks.
There is no single solution. You can either use dedicated extension per
server (if the user has a home proxy and always registers to its home
proxy), e.g.
1000-1999 server 1
2000-2999 server 2
....
or you can have a database where you store which extension is on which
server and load the next hop with avp_db_load (of course all proxies
need access to this database). If users choose a registrar dynamically,
you have to update this database, e.g. with avp_db_write after
sucessfull REGISTER.
you can also use a private ENUM tree (if users always have the same home
proxy)
Right now I'd like to leave things unsecured if possible (no need for TLS).
I would suggest to use TCP when the traffic goes via public internet as
UDP is spoofable, or use IPsec betwenn your proxies. Then UDP is fine too.
regards
klaus
Also, if there are any good pointers for setting up
the DNS in each of
the four networks (each network will have its own DNS as well as SIP
server) those would be useful.
Finally, IPv4 references would be helpful, but seeing as this will be
a v6-only setup, any reverences to IPv6 configuration guides regarding
the above would be especially useful.
Thanks again,
~Aaron
_______________________________________________
Users mailing list
Users(a)openser.org
http://openser.org/cgi-bin/mailman/listinfo/users
--
Klaus Darilion
nic.at