Re: routing a subnet.

Jeff Gong (bang@trojan.neta.com)
Tue, 17 Oct 1995 15:16:27 -0700 (MST)

>
> I want to break up a class
> c into 14 groups of 14 usable addresses. I can't get the routing issues
> down. I am using the netmask of 255.255.255.240, and not using the first
> or last group of ips. Does anyone have a quick lesson on how to handle
> the routing? Thanks for the help.
>
> Allen V. Vartorella Voice (810)642-2276
> Customer Service Engineer Fax (810)642-3676
> RustNet(tm) email al@rust.net
> Bloomfield, Michigan http://www.rust.net/
>

1. you need to add the netmask to the netmask table.

Command> add netmask xxx.xxx.xxx.0 255.255.255.240

where xxx.xxx.xxx.0 is the class c you wish to break into 16 peices.
you should have your "netmask" be what is correct for what your ethernet
port/network is configed to.

2. you'll need to add routes for the subnets.

Command> add route xxx.xxx.xxx.16 yyy.yyy.yyy.yyy

now anyone who gets into the portmaster with the static ip of
yyy.yyy.yyy.yyy will get the subnet xxx.xxx.xxx.16 routed to them. I also
had to do the same thing ( add a route ) to the cisco router on my network.
hence when you ping xxx.xxx.xxx.17-30, it goes to the cisco ( our default
route), then to the portmaster, then out to the client, through this
routing device to whatever.

can/should someone add this to the FAQ ?

enjoy.

Jeff

-- 
bang@neta.com (Jeff Gong)
Internet Access - voice 602.820.4000 fax 602.831.0242 data 602.491.3000


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