SIP/2.0 400 Bad Request - 'Invalid IP Address'

Unanswered Question
Jun 19th, 2008


I have asterisk pbx and cisco 1760 router. Router connect to ericsoon pbx with

e1. Router is behind Nat. I made one-to-one nat. When i call cisco router from asterisk i take an error. I am sending debug ccsip all output. How can i solve this problem. Thanks for help.

Ufuk Guler

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Paolo Bevilacqua Thu, 06/19/2008 - 11:10

On what is NAT done? Likely it is not doing proper SIP ALG.

Make sure on router you have route to the address that is seen in the INVITE.

ufuk-guler Thu, 06/19/2008 - 11:58


NAT is only for internet connection. On router i have right route for address that is in INVITE. What should i do?. Thank you.

Ufuk Guler


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