Hi I have the following problem: Cisco 2621+ISDN BRI module - I need to dial into MS Windows RRAS and authenticate using chap or ms-chap with DOMAINNAME\username (existing on RRAS machine). Now it dials on demand and connects to the remote modem , but the authentication fails... How to configure authentication ? cheers Maciek
~ Hi ~ I have the following problem: ~ Cisco 2621+ISDN BRI module - I need to dial into MS Windows RRAS and ~ authenticate using chap or ms-chap with DOMAINNAME\username (existing on ~ RRAS machine). ~ Now it dials on demand and connects to the remote modem , but the ~ authentication fails... ~ How to configure authentication ? ~ ~ cheers ~ Maciek ~ You can't use standard CHAP since (afaik) Windows doesn't support it for dialin. That leaves PAP or MS-CHAP, but you don't want to use PAP so that leaves MS-CHAP. So the config will be something like: interface bri0 encapsulation ppp ppp authentication ms-chap callin ppp pap refuse ppp chap refuse ppp chap hostname DOMAINNAME\username ppp chap username BLAH debugs: debug isdn q931 debug ppp negotiation caveats: syntax above from memory; typos possible, even likely might need recent IOS to work right (I think "ppp chap refuse" was at one time overloaded to cover both standard CHAP and MS-CHAP) Aaron
