I tried to use lsm, seems there's issue with the restore when the failed link 
is up. Then I got this warning when trying to check shorewall:WARNING: 
Interface eth1 is not usable -- Provider AC3 (2) not Added
I am trying to revert everything back to a simple 2 isp setting without 
failover with the config I confirmed working.
Currently, shorewall check keeps giving me:WARNING: Interface eth1 is not 
usable -- Provider AC3 (2) not Added
I have checked eth1 is up and I am able to ping the gateway of eth1. There's a 
note about this message in shorewal 4.4x release, but is it a bug or something 
needs to be done to make eth1 usable?
I've tried to stop, clear, and reset shorewall; but haven't tried to reboot the 
entire machine. Preferrable to know what is going on without rebooting the 
machine.
attached is the shorewall dump taken after applying 2isp without failover (lsm).
Thanks Tom.
--- On Fri, 17/9/10, Tom Eastep <teas...@shorewall.net> wrote:

From: Tom Eastep <teas...@shorewall.net>
Subject: Re: [Shorewall-users] help for newbie on shorewall multiple isp
To: shorewall-users@lists.sourceforge.net
Received: Friday, 17 September, 2010, 3:00 AM

On 9/16/10 6:45 PM, Lito Kusnadi wrote:
> Thanks Tom, I got it working.
> 
> Question about link failover, just thinking if the requirement scope 
> can be expanded :)
> 
> Currently, I am telling shorewall to redirect dmz and loc traffic 
> inside route_rules. And you mentioned that if I am using optional in 
> both wan interfaces, if both goes down I can use the third wan link 
> (if I have one).

I didn't say that.

> But if I only have 2 wan links, does it mean the "optional" setting
> in interfaces file suppose to do the failover?

No.

> Or I still need something like what you mentioned in the docs (i.e. 
> lsm)?

Yes.

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________


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