Re: Good alternative to BT2700HGV

On 6 Sep, 20:01, "Michael Shergold" <michael.sherg...@xxxxxxxxxxxxxxx>
wrote:
"RobP" <rpow...@xxxxxxxxx> wrote in message

news:1189087767.537038.163840@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx



On 6 Sep, 14:31, "Graham" <gra...@xxxxxxxxxxxxxxxx> wrote:
"RobP" <rpow...@xxxxxxxxx> wrote in message

news:1189080547.903802.244010@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

On 6 Sep, 12:46, "Graham" <gra...@xxxxxxxxxxxxxxxx> wrote:
"RobP" <rpow...@xxxxxxxxx> wrote in message

news:1189075266.249797.273540@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Hi,

I have a multi IP business package from BT and have been using the
BT2700HGV which they supply. The functionality seems excellent but
I'm
finding it so unreliable and I'm on my 2nd box already.

I'm looking to replace it but I'm struggling to find a model that
matches the functionality. My main problem in doing so is that I
don't
the technical terms to describe what the BT box is doing. It's
allowing me to assign my Public IPs to internal servers, but retain
firewall functionality (so it's not just routing through to them
with
non-nat). I've read about multi-nat and that seems close to it, but
that seems to mean you have a private IP range and your translate
the
Public Ip to the Private Ip on the router, but with the BT box, the
internal boxes do actually have the Public IP on them.

Looking at Multi-Nat supporting routers, I've seen a Draytek and a
Netgear, although I purchased the Netgear FVS338 and then was told
by
Netgear support it only currently supports Multi-nat if you use the
ethernet WAN port and not the internal ADSL modem.

So I'm looking for any suggestions on a good alternative to the
BT2700HGV?

Any help would be greatly appreciated.

It's not so much what the BT2700HGV is doing that is important, it's
what
you actually want to achieve. Clearly you have to lean the language
to
express this.

Perhaps you should explain why you require your internal servers to
have
public IP addresses, and what services you are making available on
these
servers. You could then identify what type of traffic is allowed in
and
out
(i.e. you would have a specification for the firewall configuration).

Hi Graham,

Thanks for the reply. In the current configuration, there's www and
RDP open on one server, PPTP and SMTP on another, and some SAP
application ports on another. Not sure if I'm looking at it from the
wrong direction, but I'm trying to find a replacement modem/router/
firewall which replicates the current one's functionality and doesn't
require me to reconfigure the network if possible. It might be that I
do end up having to reconfigure things (I could probably get away with
one public facing IP and use port forwarding for instance), but at
this stage I'm trying to find a new box which won't require me to.

Looking briefly at the Vigor, you can map a "port plus internal IP"
combination to the external address. So incoming traffic for a given
port
can be mapped to a specific server, and traffic for another port can be
mapped to the same or another server. I do this where I want a
mailserver
to receive SMTP traffic, for example.

I think a problem would arise if traffic for a given port were targeted
at
more than one server - perhaps somebody with experience of using Vigor
routers could explain whether this is possible.

--
Graham J

Thanks Graham. I'm going to check out the Drayteks and ask around on
their forum. The problem as far as I can tell is that BT give you a
public subnet (on our package) and (annoyingly) dynamically assign you
a WAN address. The point at which you specify one IP address on the
Vigor from your public subnet, is the point at which you are also
bypassing NAT. BT's router has been designed perfectly around the
service they offer, but I'm finding it a toughie to change.

Changing to a single static IP package would make this substantially
easier to work out. I don't think I'd have any port conflicts so
that's probably the way to go.

Thanks again for your input.

Rob

Have you tried using the 2 wire interfacehttp://home/managment ? Yes
it is spelled wrongly!

Michael

Thanks Michael. Hadn't seen those pages, so thanks for the tip.

The problem I have, in case anyone has any ideas is this:

I have 3 machines behind the firewall that are using public IP
addresses from the range allocated by BT. Intermittently, one of them
will become completely inaccessible to any external traffic. Machines
on other side of the firewall can access it fine on the same IP, but
nothing comes through externally. Everything's OK again once I change
the IP on the server. Get about a day out of it before I have to
switch back to the previous one. Sorry, bit out of the scope of this
group, just though it was worth describing the prob in case anyone's
seen it. Possibly it's the PC itself with the prob, but no errors
logged and as I say, if you're the other side of the firewall and
still connecting on the same interface, there's no problems.

Rob

.

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