Re: DHCP configured Interface without default route.
- From: "William T. Holmes" <wtholmes@xxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 8 May 2002 21:36:36 -0400
Hello,
I don't have control over the DHCP server for this interface. If I
manually delete the default route the is set when the interface comes
up then everything works fine. Then traffic goes where its "supposed
to". I guess one more question I have is that when you have more than
two interfaces (external) In what order does the routing occur. It would
seem that (looking from the inside) that the routing is taking place
"outside" In other words the ISA server treats interfaces as though they
are both outside and does not make any real routing decisions. Is this
correct ?
Thanks
-----Original Message-----
From: Jim Harrison [mailto:jim@xxxxxxxxxxxx]
Sent: Monday, May 06, 2002 12:06 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: DHCP configured Interface without default route.
http://www.ISAserver.org
You'll have to do this at the DHCP server.
1. Create a scope just for that server
2. Within that scope,
1. create the normal scope options, but don't specify a "router"
2. reserve an IP for the ISA interface that should be "routeless" 3.
Remove that IP from the original scope
Bear in mind that ISA won't tolerate any off-subnet traffic from the
extra external interface, regardless of how you set it up. The ISA team
seems to have taken Conner McLeod seriously...
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/authors/harrison/
Read the books!
----- Original Message -----
From: "William T. Holmes" <wtholmes@xxxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Sunday, May 05, 2002 6:31 PM
Subject: [isalist] DHCP configured Interface without default route.
http://www.ISAserver.org
Hello,
I have two interfaces on the external side of my ISA server. One of them
should be the default route the other one has a route to a specific
network. Both are configured via DHCP. Both DHCP servers actually offer
valid default routes. However I want one of the interfaces to ignore its
default route. Right now I manually delete this interfaces default route
after the interface comes up.
Is there a way to suppress the default route on a DCHP configured
external interface?
Is there a way to configure ISA to ignore a specific default route and
always use a "preferred" default route?
Thanks
Bill
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