I need help

[old.GateKeeper]

I know that THis is prbably the wrong forum for it but help!!!!!

I have a small network in a house with 4 win2k pro machines 2 win 98SE and a server running win2k
advanced server all running 100baseTX on a 100Mps switch.

Also i have a cable modem going into the server on a second NIC.

The server has just had an up-grade from a ppro 200 to a pIII 450 and so we re-installed win2k server...
fine no conflicts or anything.

Came to re-enble network address tranlation (it worked fine before) so we could all access the NET
and it did something realy foobar'd we can all ping, telnet, ftp, ICQ and play quake 3 etc
but only one of us can can surf the web ie use http! How bizarre!!!!

I know a bit about networks and this one has really got me baffled we all running TCP/IP with the same
settings (different ips of cause) but only on of can access web pages - DNS works because it resloves
things like "ping scan.co.uk" etc.

There are no users set up on the server so its not that - when we first set this up it worked straight
away and it was F**king fast compared the sygate which we where using.

I need my internet access so please help!!!

Jon

 

[bids]

Lo m8,

I have a similar setup, but not with as many PC's !

Few questions first.

What are you using to share the Inet connection ? Is it Microsoft ICS ? Which machine is acting as the Gateway to the net ? Assume this machine has two NIC's in it, and the NAT is performed there ? Are you saying you can ping from the client boxes using domain names, but then your browser cannot access them ? Using a firewall ? - might be blocking http:// (port 80 normally).

Couple of quick things to check - are the client boxes set up to connect via a dial-up connection or via a LAN - obviously needs to be LAN in Inet Explorer. Is the default gateway set up to be the NIC in the connected machine?
DNS servers set up on the client boxes ?

I have Win98 machine with two NIC's - one connected to the cable modem, and one connected to the local LAN. Using Winroute Pro, on the clients all you have to do is set the default gateway to the LAN NIC on this box, and then set the correct DNS servers. Works great, and performance through the gateway is superb (getting pings of 20-30 to BW servers from the clients. Might be worth giving this a try. The software is a 30 day trial, but there is a fix to extend this trial period on the web

Hope this helps m8 - but if not, give some more details.

Cheers

 

[old.GateKeeper]

Thanks, but i've tried that.

More Info:

Gateway machine has two NICs, one is connected to a Cable Modem, other has IP address of 192.168.0.1 connected to LAN.

This machine is Running Windows 2000 Server which has a built in NAT server. It has worked before on the same setup, but since upgrade, it won't. (See previous post for weirdness)

Client Machines have fixed IP's and have gateway and DNS server set to 192.168.0.1 (server machine)

Inet Explorer is set to use LAN on client machines (also, tried a Linux machine I have. It has the same problem using Netscape)

There is no firewall installed yet, I thought I'd get this working first!

Jon

 

[bids]

All this seems to point to the Windows 2000 server setup.
I'll run it by one of the W2K MCSE's at work and see if they have any idea. Post tomorrow.

 

[Testin da Cable]

I'd set your DNS to the one your provider is operating there m8
even if the w2k box is forwarding the requests, I wouldn't advise designating it as your nameserver 'less you actually are running a DNS server.

 

[bids]

Yeah - good one TDC - didn't pick that up inthe last post.

The DNS deffo needs to be your ISP one's. This would give the effect you've outlined - being able to ping 'em but not browse the sites.

 

[old.GateKeeper]

Just to re-iterate

We use a Surf Board CM on NTL.

Any machine can ping, ftp etc... including playing quake 3 online

For example if I type into my machine "ping scan.co.uk" it returns:

C:\>ping scan.co.uk

Pinging scan.co.uk [212.158.45.6] with 32 bytes of data:

Reply from 212.158.45.6: bytes=32 time=20ms TTL=243
Reply from 212.158.45.6: bytes=32 time=20ms TTL=243
Reply from 212.158.45.6: bytes=32 time=20ms TTL=243
Reply from 212.158.45.6: bytes=32 time=20ms TTL=243

Ping statistics for 212.158.45.6:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 20ms, Maximum = 20ms, Average = 20ms

therefore to my knowledge DNS is workiong as it resolving names to IP's.

Two of the machines work fine, although as far as I can tell they are all set up identically (they all worked before on the same settings!)

It appears that the non-working machines try to download the page. If the page has a redirect, they get redirected. Also the title bar in IE usually displays the page's Title, just nothing else, it just sits there looking like its going to download something, but doesn't.

We have discovered that if we put in a proxy such as proxy.btinternet.com:3128 into Iexplore while running the NAT server we can surf the web but this is not the ideal solution!

It seams to me that the NAT server is handling http requests differently to all the others and so when U put in a web proxy it apears to NAT to just be a TCP packet and it gets routed accordingly but http requests are not properly handled!

Jon

 

[Testin da Cable]

so you're saying that the software is crap then?