Subject: Uncommon routing arrangement
To: None <email@example.com>
From: John Klos <firstname.lastname@example.org>
Date: 02/16/2005 10:30:40
I will soon have at my office two bridged ADSL connections from Speakeasy
(Covad is completely no help when there are problems), and I'd like to set
up basic failover.
My first question is this: how do the bridged ADSL connections work? Is
there any real reason why many providers don't give more than 8 addresses
over a bridge? I asked for a subnet to be routed to one of my machines,
but they don't do that. But I am wondering if, since both ADSL bridges are
on the same Speakeasy class C network, if either can be used for the
other's IPs, or if there's some strange way that they handle MAC addresses
or something. (They're not installed yet, else I'd do the simple thing
and test them)
The next question is the one that I'm most curious about - I've had
machines on two connections at a time, and switching the default route was
simple. However, now I'll have a machine on two connections, both on the
same subnet, and both with the same default route. How do I tell the
system to use one ethernet interface / IP address for communicating with
the default route as opposed to the other?
Finally, and somewhat separately, does anyone have any recommendations for
sharing bandwidth between the two lines and traffic shaping on both? When
I'm doing NAT through the primary machine which will be physically
connected to both lines, I think it'd be pretty simple, but unless I
create my own bridge between the lines and my other machines which are
supposed to get the public IPs, I can see that this might be difficult...
Any suggestions are welcome.
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have no place in organized religion.
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