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Re: [FW-1] Advice needed on NAT and external_address testing
- To: [email protected]
- Subject: Re: [FW-1] Advice needed on NAT and external_address testing
- From: Hal Dorsman <[email protected]>
- Date: Tue, 21 May 2002 08:12:32 -0600
- Reply-to: Mailing list for discussion of Firewall-1 <[email protected]>
- Sender: Mailing list for discussion of Firewall-1 <[email protected]>
- Thread-index: AcIAta5gAnJBJgEaQh6XpIgpAkjyZQAGovhg
- Thread-topic: [FW-1] Advice needed on NAT and external_address testing
Well, if they are on the same internal network as you are,
then the FW is not the issue. An arp should be finding the
boxes, not routing to the FW. You have a network mask problem
possibly. Check the IPs of yours, and the new machines, as
well as the masks, and make sure they are on the same network.
If you still can't connect, reply with the IPs and masks, and
results of pings, and show us your arp cache.
Hal
> -----Original Message-----
> From: x fw1 [mailto:[email protected]]
> Sent: Tuesday, May 21, 2002 4:46 AM
> To: [email protected]
> Subject: [FW-1] Advice needed on NAT and external_address testing
>
>
> Hi
>
> I want to test connectivity to new boxes within our network.
>
> I have a couple of boxes on our internal network that need
> external access
> from the Internet (yes I know DMZ is better but I have little
> choice for
> temporary fix !).
>
> I wanted to be sure I had general connectivity before loading
> up apps onto
> these boxes and so setup FTP on these boxes - when I try to
> test from office
> LAN I cannot connect. At first I thought I had a problem with
> rules but
> couldn;t see an obvious problem - then I tried from external
> connection - it
> worked !
>
> So - I guess there is a problem with NAT or spoofing or
> something which is
> not allowing me to run tests internally.
>
> Please could someone advise on how I can set this up as I
> will not always
> have an external connection to test on.
>
> TIA
>
> T
>
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