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Community Member

lcp negotiation failed

i need to configure win98 user dialer into 2511(access server).

i found i can't pass the lcp negotiation process.

my ios on 2511 is c2500-i-l.120-24.bin.

on debug message, I can see:

O CONFREQ ,

I CONFREQ,

O CONFACK,

and at last, the lcp process failed.

I need to know why? Why my router can't get I CONFACK? Is this one-way communication?

Thank you very much!

Sha

2 REPLIES

Re: lcp negotiation failed

This may have several causes. For example an IP pool on the router and a fixed IP on the PC. To see what is not ACKed we need a debug ppp neg, and the the dialer config would be helpful as well.

Community Member

Re: lcp negotiation failed

Thank you, sir.

I do need to know why PC can't give me the ACK response. I don't think it's related with IP address because the LCP link can't be established first.

Regards,

Sha

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