Hello All,
Can anyone tell me whether the following setup can be achieved with SER?
[UA] <-------> [Gateway/NAT/SER Proxy] <--------> [SER Registrar]
1. The UA is behind a NAT gateway. 2. Whenever the SER Proxy on the NAT Gateway receives a registration request from a UA ( tester@gateway )on the private network, it sends a registration request ( tester@ser-registrar ) to the "SER Registrar" on behalf of the UA. This means the SER Proxy should be able to translate a SIP URI on the public side ( tester@ser-registrar ) to one on the private side ( tester@gateway ) and forward it to the right machine.
Any feedback will be greatly appreciated.
Regards,
Dhiraj Bhuyan Security Research Engineer BTexact
Tel: +44 1473 643932 Mob: +44 7753231984 Email: dhiraj.2.bhuyan@bt.com
Hello,
no, it is not possible because you can't change To and From header fields in the message and also the gateway ser can't respond to digest challenge from the registrar because it doesn't know user's credentials. You will need a B2BUA for this kind of job.
Jan.
On 17-10 14:43, dhiraj.2.bhuyan@bt.com wrote:
Hello All,
Can anyone tell me whether the following setup can be achieved with SER?
[UA] <-------> [Gateway/NAT/SER Proxy] <--------> [SER Registrar]
- The UA is behind a NAT gateway.
- Whenever the SER Proxy on the NAT Gateway receives a registration request from a UA ( tester@gateway )on the private network, it sends a registration request ( tester@ser-registrar ) to the "SER Registrar" on behalf of the UA. This means the SER Proxy should be able to translate a SIP URI on the public side ( tester@ser-registrar ) to one on the private side ( tester@gateway ) and forward it to the right machine.
Any feedback will be greatly appreciated.
Regards,
Dhiraj Bhuyan Security Research Engineer BTexact
Tel: +44 1473 643932 Mob: +44 7753231984 Email: dhiraj.2.bhuyan@bt.com
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
And the B2BUA would have to keep database of user passwords very much the same way the registrar does. This data redundancy makes me think that such a netowrk is actually quite suboptimal -- why can't be the registrar in the same box as proxy/nat?
-jiri
At 04:24 PM 10/17/2003, Jan Janak wrote:
Hello,
no, it is not possible because you can't change To and From header fields in the message and also the gateway ser can't respond to digest challenge from the registrar because it doesn't know user's credentials. You will need a B2BUA for this kind of job.
Jan.
On 17-10 14:43, dhiraj.2.bhuyan@bt.com wrote:
Hello All,
Can anyone tell me whether the following setup can be achieved with SER?
[UA] <-------> [Gateway/NAT/SER Proxy] <--------> [SER Registrar]
- The UA is behind a NAT gateway.
- Whenever the SER Proxy on the NAT Gateway receives a registration request from a UA ( tester@gateway )on the private network, it sends a registration request ( tester@ser-registrar ) to the "SER Registrar" on behalf of the UA. This means the SER Proxy should be able to translate a SIP URI on the public side ( tester@ser-registrar ) to one on the private side ( tester@gateway ) and forward it to the right machine.
Any feedback will be greatly appreciated.
Regards,
Dhiraj Bhuyan Security Research Engineer BTexact
Tel: +44 1473 643932 Mob: +44 7753231984 Email: dhiraj.2.bhuyan@bt.com
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
-- Jiri Kuthan http://iptel.org/~jiri/
-
dhiraj.2.bhuyan＠bt.com -
Jan Janak -
Jiri Kuthan