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Article View: comp.os.linux.networking
Article #15

Re: Help: ISDN and firewall

#15
From: Matt Holdrege
Date: Tue, 16 Jan 1996 20:28
31 lines
2079 bytes
In article <4dgk7n$qj6@aurora.romoidoy.com>, hjl@zoom.com (H J Lu) writes...
>H J Lu wrote:
>> 
>> 
>> 1. From our class C network, all outgoing connections can be
>>    allowed/denied bases on the IP addresses/ports.
>> 2. From outside, all incoming connections should go through the
>>    firewall and we can control the access. If necessary, we can allow
>>    any incoming connections based on the IP addresses/ports.
>> 3. We plan to run a few Internet servers on the firewall machine which
>>    are accessible from the outside.
>> 4. To access our Class C network from the outside, we should be able to
>>    login on the firewall machine and go from there.
>> 
> 
>>From what I found, I came up such a configuration:
> 
>1. A 486 PC running Linux with an ethernet card.
>2. A Combinet EVERYWARE 1000 Card.
>3. IPfirewall software.
> 
>I think that should be all I need. One thing I am not sure is how
>hard to set up the Combinet EVERYWARE 1000 Card to run PPP over it.
>BTW, We will have an ISDN Centrex with 2 B-channels. Is there
>anything I should know about my choices?

If you have an Ethernet card, why would you get an ISDN card? The best thing to
do would be to get an external ISDN router. Call your ISP and see what kind of
ISDN router they have. Since 80% of ISP's use Ascend, it would be best to get
an Ascend router. It comes with a cable to plug into your Ethernet card or hub
if you have other hosts.
Technical Details
Message-ID: <16JAN199615285320@eisner.decus.org>
Path: arc1-ca.pugleaf.net!eisner.decus.org!holdrege
References: <4deaub$nll@aurora.romoidoy.com> <4dgk7n$qj6@aurora.romoidoy.com>

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Newsgroups: comp.os.linux.networking,comp.security.firewalls,comp.dcom.isdn,comp.os.linux.hardware
Path: arc1-ca.pugleaf.net!eisner.decus.org!holdrege
From: holdrege@eisner.decus.org (Matt Holdrege)
Subject: Re: Help: ISDN and firewall
News-Software: VAX/VMS VNEWS 1.4-b1  
Followup-To: comp.os.linux.networking,comp.security.firewalls,comp.dcom.isdn,comp.os.linux.hardware
X-Nntp-Posting-User: HOLDREGE
Organization: DECUServe
Message-ID: <16JAN199615285320@eisner.decus.org>
References: <4deaub$nll@aurora.romoidoy.com> <4dgk7n$qj6@aurora.romoidoy.com>
X-Nntp-Posting-Host: eisner.decus.org
Date: Tue, 16 Jan 1996 20:28:00 GMT