Novell NETWARE 6-DOCUMENTATION Manual page 1506

A TCP/IP host cannot reach a remote host
Verify that the IP address and mask are proper.
Verify that the local TCP/IP host has the local router listed as the
default router.
Verify that each router has a routing protocol enabled and that it has
not been disabled on the interface.
Starting at the local router, verify that each router has a route to the
remote host's network.
Verify that there are no filters capable of blocking IP traffic
configured on any routers along the path.
Verify that the remote host has a route to the local host's network.
Using PING, verify that the remote host can reach each router on the
path to the local TCP/IP host.
Starting at the router closest to the remote host, verify that each
router has a route to the local TCP/IP host's network.
The router cannot initiate IP traffic to a remote router through a LAN
interface
Verify that IP is bound to the right interface with the correct address
and mask.
Check whether the interface driver is loaded with the correct frame
type.
Check whether a route exists to the network on which the destination
router resides. This can be done through the IP Routing Table
window of TCPCON. If the destination router is accessible, also
verify that it has a route to the source router's network.
A TCP/IP host cannot reach another host when Fault Tolerance is
disabled and the NIC that was handling the data transfer has gone down
Make sure the NIC is grouped for load balancing and fault tolerance.
Make sure that fault tolerance is enabled for the group.
To verify that NIC is grouped, do the following:
1
Load INETCFG and select Bindings > TCP/IP.
2
Select Configure TCP/IP Bind Option.
3
Make sure that the Group interface for LBFT is set to Yes.
Troubleshooting
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