Troubleshooting Checkpoints - Novell NETWARE 6-DOCUMENTATION Manual

Troubleshooting Checkpoints

94
NetWare TCP/IP Administration Guide
To isolate and resolve TCP/IP problems, do the following:
1
To verify that IP is bound to the desired interfaces with the correct
addresses and masks for your internetwork. Load TCPCON Select
Protocols > IP > IP Addresses.
Use INETCFG to make any required corrections.
2
To check the routing table for routes to the required network. Load
TCPCON and select IP Routing Table > Proceed, and then press Enter
If routes are missing, verify that the required routing protocols have been
enabled and bound to the correct interfaces in INETCFG. Also verify that
the routing protocol in use on an interface is correctly configured on other
routers that are accessible through that interface.
3
To verify that static routing is configured if other third-party routers that
do not use RIP or OSPF are connected on the network. Load INETCFG
and select Protocols > TCP/IP > LAN Static Routing
4
To verify that the IP Packet Forwarding statistic is set to Enabled. Load
INETCFG and select Protocols > TCP/IP > IP Packet Forwarding
Use INETCFG to make any required corrections and then reinitialize the
system.
5
Use PING or TPING to test connectivity.
Perform Step 1 through
with the router that is closest to the local node.
6
Verify that all client software has the Default Router parameter
configured to match the IP address of the network board inside the router
that is connected to the local segment.
7
Load TCPCON for the following IP statistics:
Local errors (memory error)
IP errors (unexpected protocol errors)
Check the configuration of other IP nodes on the network. Reduce IP
traffic or use a network analyzer to identify the source of invalid
packets.
IP address errors (misdirected packets)
Check the Address Translation tables on other IP nodes to determine
the source of the errors.
Step 4 on any routers that cannot be reached. Start