Troubleshooting Ppp Authentication - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

Configuring the Data Link Layer Protocol for E1, T1, and Serial Interfaces
Troubleshooting Logical Interfaces
2005.08.12 17:51:01 PPP.NEGOTIATION PPPrx[e1 1/1] LCP: Conf-Ack ID=33 Len=16 ACCM(00000000)
MAGIC(d418e92e)
2005.08.12 17:51:02 PPP.NEGOTIATION PPPrx[e1 1/1] LCP: Conf-Req
ACCM(00000000) MAGIC(2656e0ba)
2005.08.12 17:51:02 PPP.NEGOTIATION PPPtx[e1 1/1] LCP: Conf-Ack
ACCM(00000000) MAGIC(2656e0ba)
2005.08.12 17:51:02 PPP.NEGOTIATION PPPFSM: layer up, Protocol=c021
2005.08.12 17:51:02 PPP.NEGOTIATION e1 1/1: LCP up
2005.08.12 17:51:02 PPP.NEGOTIATION PPPtx[e1 1/1] LLDPCP: Conf-Req
2005.08.12 17:51:02 PPP.NEGOTIATION PPPtx[e1 1/1] IPCP: Conf-Req ID=1 Len=10 IP (10.1.1.1)
2005.08.12 17:51:02 PPP.NEGOTIATION PPPrx[e1 1/1] LCP: Identification MAGIC(2656e0ba)
Msg(A04)
2005.08.12 17:51:02 PPP.NEGOTIATION PPPrx[e1 1/1] IPCP: Conf-Req ID=1 Len=22 IP(10.3.3.2)
PriDNS(0.0.0.0) SecDNS(0.0.0.0)
2005.08.12 17:51:02 PPP.NEGOTIATION PPPtx[e1 1/1] IPCP: Conf-Rej
PriDNS(0.0.0.0) SecDNS(0.0.0.0)2005.08.12 17:51:02 PPP.NEGOTIATION PPPrx[e1 1/1] LCP:
ProtoRej (82cc)
2005.08.12 17:51:02 PPP.NEGOTIATION PPPrx[e1 1/1] IPCP: Conf-Ack
2005.08.12 17:51:02 INTERFACE_STATUS.ppp 1 changed state to up
2005.08.12 17:51:02 PPP.NEGOTIATION PPPrx[e1 1/1] IPCP: Conf-Req
2005.08.12 17:51:02 PPP.NEGOTIATION PPPtx[e1 1/1] IPCP: Conf-Ack
2005.08.12 17:51:02 PPP.NEGOTIATION PPPFSM: layer up, Protocol=8021
2005.08.12 17:51:02 PPP.NEGOTIATION ppp 1: IPCP up
6-62
Figure 6-23. debug ppp negotiation

Troubleshooting PPP Authentication

If you are troubleshooting a PPP connection and you notice that the LCP state
is continually going up and down, it is possible that one or both of the peers
cannot authenticate themselves. You can view debug authentication messages
to determine whether the local or the remote router has failed to authenticate
itself. When troubleshooting PAP, you can also view the usernames and
passwords the routers are sending.
To monitor the PPP authentication process, enter the following command
from the enable mode context:
ProCurve# debug ppp authentication
Troubleshooting PAP. If you are using PAP authentication, look for mes-
sages such as those shown in Figure 6-24.
ID=188 Len=16
ID=188 Len=16
LCP successful
ID=1 Len=4
ID=1 Len=16
ID=1 Len=10 IP(10.1.1.1)
ID=2 Len=10 IP(10.3.3.2)
ID=2 Len=10 IP(10.3.3.2)
NCP successful