Westermo RedFox Series - Manual (Page 408)

Westermo OS Management Guide
Version 4.17.0-0
Router 1 (R1). In this case all packets from H1 to H2 will go to R1, which in turn
sends them back on the same LAN to R2. The packets will be sent twice over
the LAN, resulting in waste of network capacity and increased delay. By enabling
sending of ICMP Redirect on R1, the router will send ICMP Redirect messages to
H1, informing the host that it can route packets directly to R2. If the host ac-
cepts ICMP Redirect messages, it will update its routing table and forward future
packets to H2 directly via R2.
In WeOS, the sending of ICMP Redirect messages can be enabled/disabled per
network interface. By default sending ICMP Redirect messages is enabled.
Note
A WeOS unit does not accept incoming ICMP redirect messages.
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