Re: Simple Question

From: John Smith (someone_at_microsoft.com)
Date: 10/29/03 

Date: Wed, 29 Oct 2003 13:40:39 -0400

"Paul" <prosenberg@sprintmail.com> wrote in message
news:901e97d.0310290741.486b473d@posting.google.com...
> Everyone,
>
> I have a couple of questions.. We currently use a Netscreen 25.. And
> we just added a second T1 line from a different provider.
>

Redundancy is always a good thing. If it's just a T1 line, did you consider
SDSL instead? Might be cheaper.

> I would like to know what people's thoughts are about the Netscreen
> model.. Is it a good model to use for multiple T1 lines or should we
> upgrade?
>

For redundancy it's always good to have a second ISP. But where do you stop,
two routers, two Netscreens, etc.

> Second question.. Our intent is to termintate both T1 lines into a
> Cisco 1721 router then into the firewall.. Currently, our firewall has
> the public IP address given to us by the ISP.. If we plug two
> different lines in from two differnt providers with two different
> Public IP addresses.. What do we set the firewall managed IP address?

Unless you have your own public block or can get one from your ISPs, the obvious
ones to use are RFC1918 addresses. See if your ISP(s) can give you/rent you a
small class C for your Internet segment (or portion there of) that contains your
Firewalls untrusted interface and the routers ethernet adapters.

> Any tips on how we should configure the router you guys can provide?
> We are trying to get someone in here to do it. Want to make sure we
> have an idea on how we want it configured.
>

If it's CISCO there's a recent thread on doing just what you're asking, over at
comp.dcom.sys.cisco.

> Any help would be apprecitated!
>
> Paul

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