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Webcast-Catalyst9k
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Authentication failrure with PPP over Frame with 2 PVC

We are getting ppp authentication failure in a ppp over frame relay setup with a carrier using 2 PVCs. One for voice and one for data. Can you provide a sample configuration?

4 REPLIES
Hall of Fame Super Bronze

Re: Authentication failrure with PPP over Frame with 2 PVC

R1:

username R2 password cisco

interface virtual-template1

ip address 192.168.1.1 255.255.255.252

ppp authentication chap

ppp chap hostname R1

ppp chap password cisco

interface virtual-template2

ip address 192.168.1.5 255.255.255.252

ppp authentication chap

ppp chap hostname R1

ppp chap password cisco

interface serial0/0

encapsulation frame-relay

interface serial0/0.1

frame-relay interface-dlci [dlci#] ppp virtual-template1

interface serial0/0.2

frame-relay interface-dlci [dlci#] ppp virtual-template2

R2:

username R1 password cisco

interface virtual-template1

ip address 192.168.1.2 255.255.255.252

ppp authentication chap

ppp chap hostname R2

ppp chap password cisco

interface virtual-template2

ip address 192.168.1.6 255.255.255.252

ppp authentication chap

ppp chap hostname R2

ppp chap password cisco

interface serial0/0

encapsulation frame-relay

interface serial0/0.1

frame-relay interface-dlci [dlci#] ppp virtual-template1

interface serial0/0.2

frame-relay interface-dlci [dlci#] ppp virtual-template2

New Member

Re: Authentication failrure with PPP over Frame with 2 PVC

Thank you for responding, but that is how we have it configured and still doesn't work. This router is connected to COVAD's VOA services and we don't know what kind or the configuration of the remote router but if we use an Edgewater router it works fine. We are using a 2431 IAD with 12.4.(4)T4 load. Do you know if there is any bug that could be causing this problem?

Re: Authentication failrure with PPP over Frame with 2 PVC

can you try without PPP authentication? If this works it should be simple to introduce PAP or CHAP once connectivity is proven.

Hall of Fame Super Bronze

Re: Authentication failrure with PPP over Frame with 2 PVC

Please post the output from

#debug ip ppp authentication

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