Hi Stephen,
Back on May 19 2010, I sent to the Shorewall-users group:
...when we upgraded our internet to dual providers I made a minimum change
in that I added the second provider as a sub interface of the interface with
the primary provider and this has been working for over six months.
Our Environment: We utilise DNAT and conntrack
Internet traffic could be in via provider A or B and out via
provider A or B. (Asymmetric routing)
Provider B is a layer two peering point so the Quagga routing table
contains ~50 different next hops.
Should I stay with this setup or do you recommend following
http://www.shorewall.net/MultiISP.html ?
After reading " Shorewall includes limited support for multiple Internet
connections. Limitations of this support are as follows:
* It utilizes static routing configuration. If there is a change in the
routing topology, Shorewall must be restarted."
I prefer staying with my current setup.
To which Tom Eastep replied "So long as it is working to your satisfaction,
I see no reason to change."
Maybe the way I have gone about solving this may assist your situation.
More Detail: all providers via the one router/firewall interface as
sub-interfaces and each ISP connection cabled to a switch port in the same
VLAN as the external interface. (a little messy but has been doing the job
for 6 months without issues)
Regards,
Trent O'Callaghan
-----Original Message-----
From: Stephen Brown [mailto:[email protected]]
Sent: Tuesday, 20 July 2010 8:35 AM
To: Shorewall Users
Subject: Re: [Shorewall-users] Multiple internet connections help
Well I'm not really getting anywhere. I've read through the multi-isp
documentation at least 5 or 6 times now and I can't seem to get things to
work no matter what.
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