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New Member

1721 isdn without ppp

I have c1721, c1700-sy7-mz.122-8.T5.bin

I am not able make isdn dial-up connection without encap ppp and ppp auth

If ppp is there it works OK.

2 REPLIES
Bronze

Re: 1721 isdn without ppp

PPP is the encapsulation used in likely 95% of the ISDN solutions; is there some reason you don't want to use it? Frame Relay and X25 support over ISDN have been in place since 12.1; whichever it is you are trying to get to work, you might ensure that the configs are correct, the version of code you are using is recent, and then have a look at the X25 or Frame Relay debugs, in addition to "debug isdn q931" and "debug isnd event" to see if you can understand what might be going wrong.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fdial_c/fnsprt3/dcdxisdn.htm

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fwan_c/wcffrely.htm#xtocid117

New Member

Re: 1721 isdn without ppp

Hello,

so exactly ISDN connection is OK , sh int bri0 -up -up, sh isdn stat B1 or B2 OK, sh isdn active OK. IP connection does not works.

At this moment I have temporary solution with cisco 2520 and it works only with HDLC absolutely OK.

Thanx Marian

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