Issue
Incorrect Default Gateway setting may prevent communication with the JACE-9000
Product Line
TAC IA Series
Environment
I/A Series Jace 8000/9000
Cause
The Jace8000 and Jace9000 both have primary and secondary LAN adapters. Previously, Workbench prevented users from some invalid IP configurations, but current versions of Workbench, when connecting to a 9000 will allow invalid configuration in the default gateway.
Resolution
In the 9000, a user can set different default gateways for the Primary (en0) and Secondary (en1) ports. This should not be allowed on a single network device, and leads to unpredictable behavior when routing. Compare the location of the IPv4 Default Gateway in the TCP/IP Configuration of the Platform on a 9000:
And the same page as seen in the 8000:
In future versions, this will be changed, but users should avoid invalid configurations in the affected versions.
When configuring both LAN ports for use on a 9000, only enter a value for the default gateway field in one adapter. Leave the other intentionally blank. It does not matter which is given a default gateway and which is left blank.
Note: Sometimes, when an Adapter has the Default Gateway, you cannot connect to the other Adapter (despite correctly being on that Adapter's local subnet).
These symptoms can be triggered by the Ethernet "link" (active connection) toggling up or down. The link state can change whenever:
- the JACE is rebooted or power-cycled; and/or
- the Ethernet switch ("hub") is rebooted or power-cycled; and/or
- the Ethernet cable(s) are un- or re-plugged (at either end).
In some cases, the symptoms can alleviated by toggling the Ethernet link state, in the ways listed above.
