[wplug] Dual Ethernet Ports - One routing table

[Weber, Lawrence A]

One of the solutions we tried was to periodically arping the gateway, or
to manually arping the gateway when we knew the network interface was
down.  This did not restore the connection. 

-----Original Message-----
From: wplug-bounces+lawrence.weber=ansaldo-sts.us at wplug.org
[mailto:wplug-bounces+lawrence.weber=ansaldo-sts.us at wplug.org] On Behalf
Of Brian A. Seklecki
Sent: Tuesday, August 25, 2009 2:15 PM
To: General user list
Subject: Re: [wplug] Dual Ethernet Ports - One routing table

On Tue, 2009-08-25 at 14:03 -0400, Weber, Lawrence A wrote:
> it cannot reach the gateway, so it assumes that the network is still 
> down and sends the response to itself.

FYI RFC/Common Practice:

If you can't ARP for a remote device, and net.inet4.ip.forwarding=1,
generate an ICMP host unreachable message back to the source.

E.g, gateway can't ARP for final destination or next-hop gateway as
defined by routing table.


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