Hello All! I'm in the process of configuring my newly purchased Cisco 1841 router with a T1 WIC (WIC-1DSU-T1-V2) that will be connected to a remote site and an Avaya G350 media gateway (with a WAN module). My questions have to do with how it's currently configured and what part of the config I keep and what part of the config I discard. Currently we have a 2501 on our site and a 2501 on the remote site, both with external AT&T Paradyne 3162 DSU/CSU. There's also an AT&T Integration Multiplexer 500 on both ends of the connection. See the attached diagram for a better description. Basically when I fnish the conversion both the external DSU/CSU's will be gone and the AT&T Mux devices will be gone. What's bothering me is this part of our config:
stun peer-name 10.4.0.1
stun protocol-group 9 basic
ip address 10.4.0.1 255.255.0.0
This setting is on both existing 2501's however I'm not sure if it's there because of the AT&T Mux devices or because of our IBM AS/400? I'm sorry that's so much info but I'm having trouble understanding those settings, any thoughts?
It is helpful to see the old config. Based on this I see no reason not to remove the loopback interface since it is not being used for anything else in this config.
And looking at the config confirms that you are no longer doing STUN. There are still the commands in global config but there would have been some more commands on a serial interface if it were still being done. So I think even more positively that you can remove the stun commands.