Re: Multiple Internet Sources
- From: "Joseph" <cismic@xxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 23 Jan 2002 16:52:47 -0800
All my switches are IBM managed switches where I have gui interfaces
that allow for controlling the ip segments via the switch.
They also have the ability to block specific port requests.
I wonder with some experimentation If I could get something working.
Joseph
-----Original Message-----
From: Jim Harrison [mailto:jim@xxxxxxxxxxxx]
Sent: Wednesday, January 23, 2002 6:39 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Multiple Internet Sources
http://www.ISAserver.org
As Jay said; it's not pretty.
If you're looking for something that's "self-aware", then you'll have to
spend some $$ on additional hardware or software.
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/authors/harrison/
Read the books!
----- Original Message -----
From: Joseph <mailto:cismic@xxxxxxx>
To: [ISAserver.org <mailto:isalist@xxxxxxxxxxxxx> Discussion List]
Sent: Tuesday, January 22, 2002 09:23
Subject: [isalist] Re: Multiple Internet Sources
http://www.ISAserver.org
I always hear that this type of connection won't really work. Does any
one else think that this might work?
Thanks,
Joseph
-----Original Message-----
From: Jay [mailto:jschwarzkopf@xxxxxxxxxx]
Sent: Monday, January 21, 2002 10:07 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Multiple Internet Sources
http://www.ISAserver.org
Using 2 internet connections can be done (without the 3rd nic), but it's
not pretty:
Put both internet connections into a switch in front of ISA.
Add IPs from both schemes to the ISA external interface (primary
internet connection first)
Use the primary int connection as the default gateway for the ISA
server.
Dead-gateway detection has problems on ISA, so you have to write script
that continuously checks status of internet connection, and changes IP,
gateway, and DNS on external interface.
You can publish on both external IP's (I've done it with server
publishing, I assume web pub will work as well), so you do not need to
modify ISA publishing rules.
You can even load balance (sort of). If you use a DNS caching server
and/or SMTP relay server in front of ISA, you can forward that traffic
through the secondary internet connection. You can even run VPN through
the secondary connection. Remember to add persistent routes pointing to
the secondary internet connection as the gateway for the external
servers (DNS/SMTP) and the VPN subnets.
----- Original Message -----
From: Mike Chyril <mailto:Mike@xxxxxxxxxx>
To: [ISAserver.org <mailto:isalist@xxxxxxxxxxxxx> Discussion List]
Sent: Monday, January 21, 2002 07:17
Subject: [isalist] Multiple Internet Sources
http://www.ISAserver.org
We are purchased a 10mb fibre connection.. but would still like to use
our cable internet as a backup.
Is it possible to add a 3rd nic to our ISA box and add the fibre ip's to
our web/application hosting/publishing?
Anyone done this?
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