I have a 2900 series router running IOS version 15.1(4). I am trying to connect 3rd party sip softphones to a 3rd party SIP Call controller on the inside. With low-cost firewall/gateways, I normally enable the SIP ALG feature and it will dynamically open the UDP ports for a SIP conversation for the duration of it and then close them. Does cisco IOS firewall have a SIP ALG feature and how do I configure it? Any guidance is much appreciated.
Im trying to connect a SIP softphone (on the outside) to a IP PBX on the inside. I am seeing postings that say that "ip nat service sip" is the command that enables that feature, and others say that it breaks it. So far my testings shows that it does break it. Ultimately I want my outside softphone to register to the Phone system as an external IP address. It seems like SIP normally relays the internal IP address and the ALG router will make the translation on outbound and send it to the right source.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.