Added a bridge for sharing - now no Internet...

  • Thread starter Thread starter rue
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R

rue

This has had me baffled for three days:

A fresh build of XP Home with two network cards (SiS and DLink) one
connected to a Webstar Telewest modem, the other to a hub and then the other
machines on my LAN.

Straight after build I can access Internet on this machine and see the other
machines on the network but in order for them to see the Internet through
this one I need to add a bridge to share the Internet connection (correct?)
The moment the bridge is added the Internet is inaccessible even to this
machine (the 'host') and removing the bridge does not bring it back.

I have tried everything I know so far - even installing a new NIC and
connecting that to the Internet. Reboots and driver
updates/rollbacks/removals/etc. all seem to fail.

What on earth is going wrong? Has anyone experienced this and solved it,
even if you have any ideas I'd love to hear them!

thanks
 
Not sure what the problem is, but I would recommend you invest in a router
such as these:

http://www.dabs.com/uk/channels/hardware/networking/productView.htm?quicklinx=15KM
http://www.dabs.com/uk/channels/hardware/networking/productView.htm?quicklinx=15M3
http://www.dabs.com/uk/channels/hardware/networking/productView.htm?quicklinx=2HXR

I use the 8 port Linksys model. I had some failures with this unit, but
apart from that it's been fine. SMC and Belkin also sell these units. Take
a look in PC World as they sell many of these boxes, but compare prices
carefully.

Regards

Oli
 
rue said:
This has had me baffled for three days:

A fresh build of XP Home with two network cards (SiS and DLink) one
connected to a Webstar Telewest modem, the other to a hub and then the other
machines on my LAN.

Straight after build I can access Internet on this machine and see the other
machines on the network but in order for them to see the Internet through
this one I need to add a bridge to share the Internet connection (correct?)
The moment the bridge is added the Internet is inaccessible even to this
machine (the 'host') and removing the bridge does not bring it back.

I have tried everything I know so far - even installing a new NIC and
connecting that to the Internet. Reboots and driver
updates/rollbacks/removals/etc. all seem to fail.

What on earth is going wrong? Has anyone experienced this and solved it,
even if you have any ideas I'd love to hear them!

thanks
Click to expand...

I use a similar setup with a Satellite Modem connected to one NIC card and
the other connected to a hub. The PC is running XP Pro. I do NOT have the
two cards bridged but simply share the connection by enabling Internet
Connection Sharing on the NIC connected to the Satellite Modem. The other
PCs on the network are set to pick up their IP addresses automatically

HTH

John
 
Not sure what the problem is, but I would recommend you invest in a router

Sadly, that wouldn't solve the problem Oli. Since the XP Bridge installation
(and subsequent removal) the machine no longer gets DHCP from the imediate
next hop.

I think that what I need to do is set up ICS manually but that cannot be
done until I have reestablished the Internet connection.

How can Irebuild the net without rebuilding the machine again? (agian,
again, again...)

thanks
 
Run ipconfig/all in command line on all machines. If any Win 98, run
winipcfg from "RUN"
Take notes.
Check all your default gateways.
On the "host" machine, you will see 2 NICS - local and ISP
From the machine with 2 NICS, look at the ISP NIC specs. The gateway should
be your ISP address. This is looking "upstream" to the ISP.
From the local machines, gateway (upstream) should be the address of
whichever of the 2 nics serves the LAN - be careful to get the right one.
Now the tricky bit. From the LAN NIC, the gateway should be the OTHER NIC -
the one you connect to the ISP.
So looking upstream from a local machine, the path is to the "local" nic,
then to the "isp" nic, then to the ISP.
And of course, check for any address conflicts.
Are you running DHCP server on the "host" machine, and is the service
started? If so, you won't have any address conflicts.

Hope this helps.
 
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