Tuesday, April 04, 2006
PPP authentication mismatch. (Question #51)
Consider two routers connected back-to-back via their serial interfaces with the following configuration
Router R1
Router R2
Note in particular that the authentication protocols at either end
do not match. Will the PPP link come up?
Router R1
username R2 password 0 cisco
!
interface Serial2
ip address 10.10.10.1 255.255.255.0
encapsulation ppp
no keepalive
ppp authentication ms-chap-v2
Router R2
username R1 password 0 cisco
!
interface Serial2/0
ip address 10.10.10.2 255.255.255.0
encapsulation ppp
no keepalive
ppp authentication chap
Note in particular that the authentication protocols at either end
do not match. Will the PPP link come up?
Comments:
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I tried this on a back-to-back aux connection and it works. It also seems to work if the R1 has ms-chap. I tried R2 without any "ppp authentication" and it seemed to work as well.
So one side can adapt to the type of chap authentication that the remote side is using?
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So one side can adapt to the type of chap authentication that the remote side is using?
# posted by 
: Thu Apr 13, 09:05:00 AM 2006
: Thu Apr 13, 09:05:00 AM 2006 << Home
