Looking at my Config File (GW 5400), I found:
ip unnumbered FastEthernet0/0
ip tcp header-compression
no ip mroute-cache
async mode interactive
peer default ip address pool dialin_pool
ppp max-bad-auth 2
ppp authentication pap chap
group-range 1/00 3/107
I dont know why this is configured on the GW. What is this interface?
Thanks in advance.
The interface Group-Async0 is used for example, for modems. Sometimes the AS5400 can be configured to accept calls from both Async and ISDN users and that's when you use this type of config.
You can check this link:
Hope this answers your question, if so, please rate!