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Same loopback interface for SIP & H323

problemchild27
Level 1
Level 1

I have a Gateway connected to 29XX router for SIP Calls, same gateway has FXO port. Can i use the same loopback interface(IP is registered as SIP trunk in CUCM) to bind H323?

2 Accepted Solutions

Accepted Solutions

Jonathan Unger
Level 7
Level 7

Yes, since SIP and H323 are completely different protocols and operate using different TCP/UDP port numbers you can use the same loopback interface.

View solution in original post

ajay1komban
Level 1
Level 1

You can use same loop back address for both protocols .Loop back interface is  virtual interface and when it is in use, packets can binding H.323 with loopback interface. If we use virtual interface no need to worry like physical port, it would not go down.

 

same loop back address you can use for sip& H323

View solution in original post

3 Replies 3

Jonathan Unger
Level 7
Level 7

Yes, since SIP and H323 are completely different protocols and operate using different TCP/UDP port numbers you can use the same loopback interface.

is it possible to use two different SIP loopback IPs for two different SIP trunks on the same router?

ajay1komban
Level 1
Level 1

You can use same loop back address for both protocols .Loop back interface is  virtual interface and when it is in use, packets can binding H.323 with loopback interface. If we use virtual interface no need to worry like physical port, it would not go down.

 

same loop back address you can use for sip& H323