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SCCP behind NAT

On the subject of using a Cisco 7960 IP phone behind NAT:

1.

Does anyone know if there are any NAT implementations that support SCCP markup, aside from Cisco's IOS / PIX routers?

2.

Does anyone know what the aspects are of SCCP that cause it to not be supported by typical NAT implementations?

3.

Does anyone know of workarounds to allow typical NAT implementations to support SCCP markup?

1 REPLY
Cisco Employee

Re: SCCP behind NAT

To answer no. 1 I don't know the answer. For no.2 the reason is the Source and destination addresses are also in the payload as well as the ip header. The normal nat process only rewrites the address in the header not in the payload. For no.3 the only thing that comes to mind is a tunnel or something where you are not doing NAT at all.

Thank you,

-Mckee

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