The simplest way would be to extend the range by using a different netmask - I assume you are currently using 255.255.255.0 . The default for 172.19.0.0 under the old class B system would be a netmask of 255.255.0.0 which would give you up to 65533 possible hosts. A lot of schools in my area are set up with netmask 255.255.252.0 with 10 bits for the host giving a total of up to 1022 hosts. If you are running DHCP then it is very easy to change to suit whatever netmask you decide you need. If you can't or don't want to change the netmasks then you can use a linux box to route between the subnets. You don't need to use masquerading, though, as presumably your router is doing the address translation to the internet for you. If you are using SuSE linux all you need to do is use the modify configuration file option in Yast to set ip_forward to yes. You will have to check the router setup to be sure it matches. _____________________________________ Giles Nunn - Network Manager Carms Schools ICT Development Centre Tel: +44 01239 710662 Fax: 710985 ____________________________________ On Sat, 15 Jul 2000, Dave Williams wrote:
I need to extend my school's network beyond the 254 IP numbers I'm using - based on 172.19.50.x
This network includes a router which links through an ISDN line to an LEA proxy server.
Is the best way to achieve this to split the network into 2 segment and use a Linux machine and Masquerading to link them together.
ie.- leave the bulk of the machines on 172.19.50.x use 192.168.0.x for the others use two NICs in the Linux machine, 1 for each subnet Install masquerading
Will this allow the machines on 192.168.0.x to access *all* the services on the main network?
Dave Williams