
Troubleshooting a Network Layer Problem
117379-A Rev. A 6-7
Example
$ get wfIpBase.*.0
wfIpBase.wfIpBaseCreate.0 = 1
wfIpBase.wfIpBaseEnable.0 = 1
wfIpBase.wfIpBaseState.0 = 1
wfIpBase.wfIpBaseForwarding.0 = 1
wfIpBase.wfIpBaseDefaultTTL.0 = 30
wfIpBase.wfIpBaseRipDiameter.0 = 15
wfIpBase.wfIpBaseRouteCache.0 = 60
wfIpBase.wfIpBaseMibTables.0 = 2
wfIpBase.wfIpBaseNetworks.0 = 250
wfIpBase.wfIpBaseZeroSubnetEnable.0 = 2
wfIpBase.wfIpBaseEstimatedNetworks.0 = 0
wfIpBase.wfIpBaseHosts.0 = 81
wfIpBase.wfIpBaseEstimatedHosts.0 = 0
wfIpBase.wfIpBaseDefaultOverSubnetEnable.0 = 2
wfIpBase.wfIpBaseMaxPolicyRules.0 = 32
3. Check the values of the following statistics twice in the
wfIpInterfaceEntry object. Compare them to determine whether IP is
currently receiving/transmitting packets and generating errors:
• Reception and transmission statistics
If the reception or transmission statistics do not change, do the following:
-- Check the reception and transmission statistics of the other protocols
associated with the same connector and the same slot.
-- Try disabling and enabling IP, and check the log messages to
determine why the connection will not activate.
• Error statistics
4. Make sure that the next hop and network you are trying to reach are in
the routing table entries.
5. Verify the configuration parameters.
6. Use Packet Capture and a network analyzer to check the segments
involved in the problem.
Caution: Disabling IP disrupts network services.
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