Prestige 2602HW Series User’s Guide

Figure 285 “Triangle Route” Problem

The “Triangle Route” Solutions

This section presents you two solutions to the “triangle route” problem.

IP Aliasing

IP alias allows you to partition your network into logical sections over the same Ethernet interface. Your Prestige supports up to three logical LAN interfaces with the Prestige being the gateway for each logical network. By putting your LAN and Gateway B in different subnets, all returning network traffic must pass through the Prestige to your LAN. The following steps describe such a scenario.

1A computer on the LAN initiates a connection by sending a SYN packet to a receiving server on the WAN.

2The Prestige reroutes the packet to Gateway B, which is in Subnet 2.

3The reply from WAN goes through the Prestige to the computer on the LAN in Subnet 1.

Figure 286 IP Alias

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