IP Line administration using Element Manager Page 615 of 910
IP Line Description, Installation and Maintenance
12 Enter the IP address and Subnet mask for any host that is not on the
ELAN subnet but requires access to the Voice Gateway Media Card
across the ELAN subnet.
A Telnet session for maintenance from a remote PC is an example of
when this would be needed. The address of the remote PC would be
added in the Route list.
The default route on the card causes packets for unknown subnets to be
sent out the TLAN network interface. Packets from an external host arrive
on the ELAN network interface. Responses are sent on the TLAN network
interface. This process can cause one-way communication if the TLAN
subnet is not routed to the ELAN subnet. It is necessary to add an entry
in the Route list to correct the routing so that response packets are sent
on the ELAN subnet. Each entry creates a route entry in the card's route
table that directs packets out the ELAN network interface. See Figure 94
on page 391).
To add additional routes, click the Add button again and enter the route
information. Repeat this step for each route to be added.
13 Click Save and Transfer and then click OK.
14 In the Node Configuration window, click the Transfer/Status button
associated with the node that had the IP address changes.
End of Procedure
CAUTION
Use caution when assigning card routing table entries.
Do not include the IP address of an IP Phone.
Otherwise, voice traffic to these IP Phones is incorrectly
routed through the ELAN subnet and ELAN gateway. To
avoid including the wrong IP address, Nortel
recommends that Host IDs be defined for the card
routing table entries.