Chapter 3: Terminal Menu Operation and Structure
IPX Map/IARP
Write security: 3, Read security: 5
When this is set to Yes (def), the Express L768/L1.5 will send Inverse ARP packets to determine the IPX network on the other end of the virtual circuit. If the IARP is responded to, a route is placed in the IPX route table. A setting of No means that the IPX network is to be assigned to the link statically using the IPX Map/Link Network parameter. The Express L768/L1.5 will always re- spond to Inverse ARP requests.
IPX Map/Link Network Write security: 3, Read security: 5
This is the IPX network of the link or of the other device’s LAN. When this DLCI becomes active, the Express L768/L1.5 will add a route to this network in the IPX routing table. This address is also used by the Express L768/L1.5 to respond to Inverse ARP requests. If this IPX address is left as 0, the link is treated as unnumbered and the Express L768/L1.5 responds to the Inverse ARP with its Ethernet IPX address.
DLCI Mapping/Bridge Map
This menu is used to permit bridging of packets over this DLCI. Each DLCI or virtual circuit must be assigned a bridge group. The bridge group treats all virtual circuits as one circuit. Bridge packets destined to be transmitted out a particular bridge group are copied and transmitted individually out each DLCI in the bridge group. However, incoming bridge packets received from one DLCI are not retransmitted out the other DLCIs in the same bridge group. Any device in the bridge group must transmit to each DLCI. This requires a fully meshed circuit, meaning each device has a virtual circuit to each other.
Bridge Map/Active Write security: 3, Read security: 5
When this is set to Yes (def), the Express L768/L1.5 will bridge packets to and from this DLCI. Bridge packets are any packets that are not IP or IPX packets except when the router is turned off, in which case that particular router’s pro- tocol packets are bridged. A setting of No means that no bridging will occur.
Bridge Map/Bridge Group Write security: 3, Read security: 5
The bridge group that this DLCI is part of is specified here as Group 1 or Group 2. These groups correspond to the spanning tree protocols Bridge Group 1 and Bridge Group 2.
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