[isalist] Re: Adding another internet connection
- From: Jim Harrison <Jim@xxxxxxxxxxxx>
- To: "isalist@xxxxxxxxxxxxx" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 8 May 2008 06:53:59 -0700
http://www.ISAserver.org
-------------------------------------------------------
Answer - yes & no.
ISA has the ability to "route" traffic within the constraints of the Windows
routing table and the network definitions you build in ISA, that does not make
it a "router" any more than the marketrtoids from DLink, Linksys, Netgear, etc.
calling a DSL or cable bridge a "router" makes it so.
ISA does support multiple networks, but does not support multiple ISP
connections or multiple default gateways or multiple default routes..
-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Steven Comeau
Sent: Thursday, May 08, 2008 6:46 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Adding another internet connection
http://www.ISAserver.org
-------------------------------------------------------
Question... Isn't ISA a router also? I mean, going from 1 network to
another, that involves routing (Layer 3). You don't necessarily HAVE to
do firewalling, but it certainly makes things more secure. We have 2 of
our ISA servers with at least 4 NICs and going from one network to
another certainly involves routing - some of our VLANs to another have
no firewalling (all traffic allowed).
Steve Comeau
IT Manager
Rutgers Athletics
83 Rockafeller Road
Piscataway, NJ 08854
732-445-7802
732-445-4623 (fax)
www.scarletknights.com
-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Thor (Hammer of God)
Sent: Wednesday, May 07, 2008 7:41 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Adding another internet connection
http://www.ISAserver.org
-------------------------------------------------------
I wouldn't know how to do this with 2000, but with 2 individual
connections (and yes, on different circuits, not on a "switch" unless, I
guess, a VLAN was in use, but it's not needed or wanted in this case)
one could install another NIC in a 2004/2006 box and configure 1 NIC as
the "External" network and the other as a parameter network. All
external traffic would route out the "External" network, and all
"inbound" traffic could be published from the parameter network
internally. That would work just fine.
But, of course, there would be no load-balancing or redundancy. But
from a "all out one pipe" with 2 circuits standpoint, it would work.
t
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx] On Behalf Of William T Holmes
> Sent: Wednesday, May 07, 2008 4:23 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Adding another internet connection
>
> http://www.ISAserver.org
> -------------------------------------------------------
>
> When you say essentially what do you mean? You either have two
> connections or you don't. If you do then each connection would have
its
> own IP address and potentially (and likely) have its own network
> address space. Given this you would require a router to manage the
> traffic to a your multiple connections. Further your router would have
> to have enough intelligence to decide the best path to use for a given
> connection or some type of round robin routing.
>
> You really should never simply plug it multiple networks into a
switch;
> standard layer 2 switches don't understand ip routing. The cheap ones
> don't even understand ethernet routing all that well.
>
> ISA Server is a firewall not a router.
>
> Bill
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx] On Behalf Of Bryan D. Andrews
> Sent: Wednesday, May 07, 2008 5:51 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Adding another internet connection
>
> http://www.ISAserver.org
> -------------------------------------------------------
>
> Time to ask this question once more...
>
> We essentially have 2 internet connections on the same switch with ISA
> external nic hooked up to the switch also. It has the external address
> from one of the routers but I would like end users to route out
through
> the other internet connection. Can I just add an additional IP and
> gateway to the NIC from the other router?
>
> Is this possible with ISA 2000? Is it possible with any ISA Server
> version?
>
> Bryan Andrews - President
> TrendCRM & AppTheory > 404.593.2100 x111
>
>
> -----Original Message-----
> From: Bryan D. Andrews
> Sent: Thursday, August 10, 2006 8:53 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: RE: [isalist] Re: Adding another internet connection
>
> So if I did set up another ISA server would I need any special
> configuration for them to play nice on the same subnet? Or would I
just
> plug in the internal nic to the same switch and then have DHCP setup
to
> use the new ISA as the gateway?
>
> Thanks.
>
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx]
> On Behalf Of Jim Harrison
> Sent: Thursday, August 10, 2006 4:37 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Adding another internet connection
>
> http://www.ISAserver.org
> -------------------------------------------------------
>
> Unfortunately, you would guess wrong.
> ISA does not (yet) support multiple Internet interfaces.
>
> Bryan has two choices; multiple ISA servers or an external
> connection-sharing device.
>
> -------------------------------------------------------
> Jim Harrison
> MCP(NT4, W2K), A+, Network+, PCG
> http://isaserver.org/Jim_Harrison/
> http://isatools.org
> Read the help / books / articles!
> -------------------------------------------------------
>
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx]
> On Behalf Of D PIETRUSZKA USWRN INTERLINK INFRA ASST MGR
> Sent: Thursday, August 10, 2006 13:27
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Adding another internet connection
>
> http://www.ISAserver.org
> -------------------------------------------------------
>
> I guess you should be able to add another network card connected to
the
> new internet switch, create a network for it.
> Create another network with your users IP range and NAT the user's
> network to the new network created with your new NIC.
>
> Regards
> Diego R. Pietruszka
>
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx]
> On Behalf Of Bryan D. Andrews
> Sent: Thursday, August 10, 2006 3:42 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Adding another internet connection
>
> http://www.ISAserver.org
> -------------------------------------------------------
>
> I was hoping to NOT add another server to the mix. We are a small
> company and try our best to limit the number of servers that we have /
> manage.
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx]
> On Behalf Of Thor (Hammer of God)
> Sent: Thursday, August 10, 2006 3:15 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Adding another internet connection
>
> http://www.ISAserver.org
> -------------------------------------------------------
>
> How about another ISA server just for outbound?
>
> t
>
>
> On 8/10/06 12:11 PM, "Bryan D. Andrews" <bandrews@xxxxxxxxxxxxx>
> spoketh
> to
> all:
>
> > http://www.ISAserver.org
> > -------------------------------------------------------
> >
> > We are trying to figure out the best way to add another internet
> > connection to our network so we can have our T1 serving our mail and
> > extranet servers while our endusers surf on the high bandwidth (8mb)
> > broadband connection.
> >
> > We have our internet router connected to a (external) switch. Our
> > external nic on our ISA server is connected to that switch. The isa
> > internal nic is connected to the internal switch where we have a
> single
> > subnet with all our servers and users.
> >
> > What is the best way to support this extra internet connection via
> ISA
>
> > server? Are there any links for this type of setup? I was having
> issues
> > putting together a good search string for this...
> >
> > Thanks for any thoughts.
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