ZyXEL Communications P-202 - Manual (Page 389)

P-202H Plus v2 Support Notes
Troubleshooting
1. Internet Connection
Related SMT screens and CI commands:
- SMT Menu 1, 4
- SMT Menu 24.1 and 24.4
-isdn loop
-dev dial
Some basic knowledge about Internet Connection Setup
Before we start any verification or troubleshooting of Internet setup, let us first
give a brief introduction of the connection setup sequence. Any PPP call to
Internet or other (ISDN) router can be divided into the following steps:
- Dialing
- LCP negotiation
- Authentication ( it can be None/PAP/CHAP)
- NCP negotiation ( NCP can be IPCP, BACP, BCP, CCP, IPXCP)
The P-202H Plus v2 provides a very clear log for each step of the call setup. The
following shows the messages displayed in each steps. If a step fails, an error
message is displayed.
Start Dialing chan<1> phone<20301> <------------- Dialing
Call CONNECT speed<64000> type<2> chan<0> <------- Dial OK
( After call is up, P-202H Plus v2 will start LCP negotiation )
LCP opened <----------------------------------- Lcp OK
CHAP login to remote OK! <------------------------- Auth OK
IPCP negotiation started <------------------------- Ipcp negotiation
BACP negotiation started
***BCP stopped <------------------------- Bcp Not available
CCP stopped <----------------------------------- Ccp Not available
IPCP opened <----------------------------------- IPCP OK
BACP opened <----------------------------------- Bacp OK
All contents copyright © 2006 ZyXEL Communications Corporation.
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