[K12OSN] OT - Linux router - I'm stuck <-long

Tim Litwiller tim at litwiller.net
Fri Mar 26 13:32:01 UTC 2004


Will someone tell me a better place to go ask this question?

Tim Litwiller wrote:

> here is the network diagram
>
> do=district office
> rms=middle school
> rhs=highschool
> pe=elementary school
>
> do network 172.16.96.x <-> 172.16.127.x netmask 255.255.224.0
> eth1 do router ip address 172.16.96.1
> eth0 do to rms interface ip 10.0.0.2 netmask 255.255.255.0
> static routes
> route add -net 172.16.32.0 netmask 255.255.224.0 gw 10.0.0.102
> route add -net 172.16.0.0 netmask 255.255.224.0 gw 10.0.0.102
> route add -net 172.16.64.0 netmask 255.255.224.0 gw 10.0.0.102
> |
> |  radios in bridge are set to 10.0.0.3 and 10.0.0.103
> |
> eth1 rms to do radio interface ip 10.0.0.103 netmask 255.255.255.0
> eth0 rms router ip address 172.16.32.1
> rms network 172.16.32.x <-> 172.16.63.x netmask 255.255.224.0
> eth2 rms to rhs radio interface ip 10.0.1.2 netmask 255.255.255.0
> route add -net 172.16.96.0 netmask 255.255.224.0 gw 10.0.0.2
> route add -net 172.16.0.0 netmask 255.255.224.0 gw 10.0.1.102
> route add -net 172.16.32.0 netmask 255.255.224.0 gw 10.0.1.102
> |
> | radios in bridge are set to 10.0.1.3 and 10.0.1.103
> |
> eth1 rhs to rms radio interface ip 10.0.1.102 netmask 255.255.255.0
> eth0 rhs router ip address 172.16.1.1
> rhs network 172.16.0.x <-> 172.16.31.x netmask 255.255.224.0
> rhs gateway to internet 172.16.1.254
> rhs windows file server 172.16.0.1
> eth2 rhs to pe radio interface ip 10.0.2.3 netmask 255.255.255.0
> route add -net 172.16.32.0 netmask 255.255.224.0 gw 10.0.1.2
> route add -net 172.16.96.0 netmask 255.255.224.0 gw 10.0.1.2
> route add -net 172.16.64.0 netmask 255.255.224.0 gw 10.0.2.102
> |
> | radios in bridge  are set to 10.0.2.3 and 10.0.2.103
> |
> eth0 pe to rhs radio interface ip 10.0.2.102 netmask
> eth1 pe router ip address 172.16.64.1
> pe network 172.16.64.x <-> 172.16.95.x netmask 255.255.224.0
> route add -net 172.16.32.0 netmask 255.255.224.0 gw 10.0.2.2
> route add -net 172.16.0.0 netmask 255.255.224.0 gw 10.0.2.2
> route add -net 172.16.96.0 netmask 255.255.224.0 gw 10.0.2.2
>
>
>
> the problem seems to be some setting on the rms router
> at the console of the machine
> from do I can ping rms
> from rms I can ping rhs and pe and do
> from rhs I can ping all and internet
> from pe I can ping all and internet
>
> from laptop on each network
> from do I can ping do and rms
> from rms I can ping do and rms
> from rhs I can ping all and internet
> from rhs I can ping all and internet
>
> so rms isn't passing anything from eth1 and eth0 thru to eth2
>
> in /etc/sysctrl I have
> net.ipv4.ip_forward = 1
> net.ipv4.conf.default.proxy_arp = 1
>
> cat /proc/sys/net/ipv4/ip_forward  cat 
> /proc/sys/net/ipv4/conf/eth0/proxy_arp
> cat /proc/sys/net/ipv4/conf/eth1/proxy_arp
> cat /proc/sys/net/ipv4/conf/eth2/proxy_arp
>
> the output of each of these is 1
>
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