Problem with NAT? can get to web server internally but not externally

We are trying to setup our helpdesk software website so external users
can access it. However, we have been unsuccessful. We don't have any
issues accessing it internally from our 10.1.1.X LAN
We have had our ISP setup a public DNS "A" record of
customerservice.amerinet-gpo.com which resolves to 198.88.234.40 and that
appears to be working.
Next we added a NAT to our Firewall to take 198.88.234.40 traffic and put
it to the local IP of 10.1.1.23 which is our local address for the
webserver running the helpdesk software.
We also made sure that BM filters are allowing traffic on ports 80 and
443 to the local IP as well.
We have 4 other webservers (on a separate servers than our helpdesk
software website) that are exposed to the outside in this same manner and
all work fine.
The helpdesk website is on Windows 2003 server SP1 running IIS 6.0. Our
firewall server is NetWare 6 SP5 and BM 3.7 SP3.
I have tried to just telnet to the public IP of 198.88.234.40 on port 80
and it times out. I can't understand why, and have checked my entries on
BM and even deleted and re did them 3 times to make sure I didn't make a
mistake. I even have another web server on that block NAT'd the same way
and it works (198.88.234.36), if you telnet to it on port 80 it goes
right away.
What else can I try? Any insight would be greatly appreciated!
Thanks,
SCOTT

> > ok, the easiest way to calculate valid addresses is to use an IP
subnet
> > calculator. The one I like the most is the free utility by Wildpackets
> >
http://www.wildpackets.com/products/...tcalc/overview
> >
> > Anyway, with a 255.255.255.248 network mask the valid IP addresses
> > associated to the primary address of your BM server are in the range:
> > 198.88.234.33-198.88.234.38
> > therefore .40 isn't included. Actually .40 is the subnet identifier
of
> a
> > separate subnet. The addresses from .33 to .38 are the ones you can
use.
> >
> > --
> > Cat
> > NSC Volunteer Sysop
>
> I was mistaken, the subnet for that block is 255.255.255.240 so I was
> told by our ISP that our range was is 198.88.234.32 to 198.88.234.47
or
> 14 usable IPs since first and last are unusable.
>
> We have 3 different IP blocks from our ISP, the above 198.88.234.32 one
> with the 255.255.255.240 subnet, then a 199.217.136.184 with
> 255.255.255.248 subnet and finally a 198.88.233.1 with a
255.255.255.248
> subnet.
>
> So I think we should be able to use the 198.88.234.40 address.
>
> SCOTT
>
I was really hoping that we had the wrong sub net in BM for the
198.88.234.32 block! When I read your post last night, I thought that's
gotta be it...sadly I checked and it does have it as 255.255.255.240 when
I look in inetcfg under bindings. I even checked our Cisco router as
well to make sure it had the sub net correct since this is the first time
I've tried to use an IP above 198.88.234.36. The router looked fine as
well. Is there anyplace else that this could be wrong, maybe a config
file on BM or something?
Thx,
SCOTT V.

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