NAT Configuration (cheekily fixed tripple connection to NTL)
Posted: Mon Dec 20, 2004 6:53 pm
Hi,
I'm trying to network a few PC's on a cable connection. Unfortunately the cable modem will only issue 1 IP so multiple users cannot use it by a simple hub/switch addition and the modem must be rebooted to issue a new IP to another PC wishing to use the net if somebody else was using it earlier.
I have an old ADSL router which has NAT on it. I've read that my particular cable modem will allow multiple PCs to onnect if you add a router with NAT so all PC' s appear as the issued IP of the modem.
I can't quite understand how to do it or if it's even possible with the ADSL router (I know you can use as a normal router for DHCP etc without connecting to ADSL).
The cable modem during this session has given me the following:
IP: 81.108.149.201
Subnet: 255.255.255.0
Gateway: 81.108.149.254
The ADSL router will issue IP's 10.0.0.4 --> 10.0.0.15 (unless defined by user in the settings). It's own IP is 10.0.0.2 and the default gateway it issues is 10.0.0.2
In the NAT setting you chose the adapter (Pvc1 - correct me if I'm wrong, for the LAN) and a User IP (You can list a few).
How do I go about sharing this connection so it looks as if all PC's are 81.108.149.201?
My method so far was to connect a PC to the net and run ipconfig to get the details. Then enable DHCP on the ADSL router and put the address 81.108.149.201 in the NAT but it doesn't work.
My networking knowledge is poor so forgive me if I didnt make much sense
BTW: I connected one PC - got the IP, default gateway and subnet then pulled the pc of the network while the modem was still connected. Went to another PC, put those settings in the TCP/IP properties but it wouldnt go on the net even though the gateway could be pinged. (MAC address issue?)
Thanks
I'm trying to network a few PC's on a cable connection. Unfortunately the cable modem will only issue 1 IP so multiple users cannot use it by a simple hub/switch addition and the modem must be rebooted to issue a new IP to another PC wishing to use the net if somebody else was using it earlier.
I have an old ADSL router which has NAT on it. I've read that my particular cable modem will allow multiple PCs to onnect if you add a router with NAT so all PC' s appear as the issued IP of the modem.
I can't quite understand how to do it or if it's even possible with the ADSL router (I know you can use as a normal router for DHCP etc without connecting to ADSL).
The cable modem during this session has given me the following:
IP: 81.108.149.201
Subnet: 255.255.255.0
Gateway: 81.108.149.254
The ADSL router will issue IP's 10.0.0.4 --> 10.0.0.15 (unless defined by user in the settings). It's own IP is 10.0.0.2 and the default gateway it issues is 10.0.0.2
In the NAT setting you chose the adapter (Pvc1 - correct me if I'm wrong, for the LAN) and a User IP (You can list a few).
How do I go about sharing this connection so it looks as if all PC's are 81.108.149.201?
My method so far was to connect a PC to the net and run ipconfig to get the details. Then enable DHCP on the ADSL router and put the address 81.108.149.201 in the NAT but it doesn't work.
My networking knowledge is poor so forgive me if I didnt make much sense
BTW: I connected one PC - got the IP, default gateway and subnet then pulled the pc of the network while the modem was still connected. Went to another PC, put those settings in the TCP/IP properties but it wouldnt go on the net even though the gateway could be pinged. (MAC address issue?)
Thanks