
Configuring and Troubleshooting Bay Dial VPN Services
C-6 303509-A Rev 00
Table C-1. Problem Symptoms and Likely Causes
If the symptoms are
limited to The most likely cause is Do the following/Look here for information
A single protocol on a
single port
The problem is most likely in the
network layer or above.
Refer to the chapter on troubleshooting a
network connection, specifically the section
on IP in
Troubleshooting Routers
.
A single protocol on
multiple ports within
one slot
The problem is most likely in the
configuration of the network layer
protocol.
Make sure that you enabled the protocol.
Refer to the chapter on troubleshooting a
network connection problem in
Troubleshooting Routers
.
Multiple protocols on a
single port
The problem is most likely in the
physical or data link layer. Physical
layer problems can include the
same conditions listed under
“Multiple protocols on multiple
ports within one slot.” Data link
layer problems include the
following types of connections:
-- Ethernet
-- Frame relay
-- MCT1
-- Synchronous
-- FDDI
Refer to the chapter on troubleshooting a data
link connection in
Troubleshooting Routers
for
detailed diagnostic procedures and
responses.
Multiple protocols on
multiple ports within
one slot
If the same protocols are running
OK in other slots, the problem is
most likely physical.
Possible actions include
-- Examining the log to ensure that the link
module is working, and if not, what is the
current state and why it is that way.
-- Determining the media-specific state of
the connector in question, using the
Statistics Manager Quick Get tool.
-- Ensuring that you have the proper cable
for the device and application you are
using.
Refer to the
Cable Guide
for guidelines. Also
verify that both ends of all cables firmly
connect to the proper interfaces.
(continued)
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