Re: Debian and router
On Wed, 14 Jun 2000, Ron Rademaker wrote:
Some background: I got a range IP:nrs from x.y.26.0 to x.y.26.63.
The Cisco is located at x.y.26.62.
I've divided the whole net into three parts, 0->31, 32->48 and 49->63.
The debian-box is supposed to be located at x.y.26.61.
I understand that I have to make the Cisco route all traffic for the 0->63
network to x.y.26.61, but do I also have to tell it that I have three
subnets there?
Here we go:
---
root@myhost:~> route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
x.y.26.48 0.0.0.0 255.255.255.240 U 0 0 0 eth0
x.y.26.48 x.y.26.61 255.255.255.240 UG 1 0 0 eth0
x.y.26.32 0.0.0.0 255.255.255.240 U 0 0 0 eth1
x.y.26.32 x.y.26.46 255.255.255.240 UG 1 0 0 eth1
x.y.26.0 0.0.0.0 255.255.255.224 U 0 0 0 eth2
x.y.26.0 x.y.26.30 255.255.255.224 UG 1 0 0 eth2
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 x.y.26.62 0.0.0.0 UG 1 0 0 eth0
root@myhost:~> ifconfig
eth0 Link encap:Ethernet HWaddr 00:n0:nA:41:4A:11
inet addr:x.y.26.61 Bcast:x.y.26.63 Mask:255.255.255.240
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:119800 errors:0 dropped:0 overruns:0 frame:0
TX packets:6362 errors:0 dropped:0 overruns:0 carrier:0
collisions:6 txqueuelen:100
Interrupt:5 Base address:0x7000
eth1 Link encap:Ethernet HWaddr 00:n0:nA:41:4A:14
inet addr:x.y.26.46 Bcast:x.y.26.47 Mask:255.255.255.240
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:121726 errors:0 dropped:0 overruns:0 frame:0
TX packets:99 errors:0 dropped:0 overruns:0 carrier:0
collisions:1 txqueuelen:100
Interrupt:10 Base address:0x7400
eth2 Link encap:Ethernet HWaddr 00:n0:nA:41:48:C6
inet addr:x.y.26.30 Bcast:x.y.26.31 Mask:255.255.255.224
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:115245 errors:0 dropped:0 overruns:0 frame:0
TX packets:15373 errors:0 dropped:0 overruns:0 carrier:0
collisions:4448 txqueuelen:100
Interrupt:3 Base address:0x7800
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
root@myhost:~> ipchains -L
Chain input (policy ACCEPT):
Chain forward (policy ACCEPT):
Chain output (policy ACCEPT):
---
(Sorry for the x.y's and n's, but since this is supposed to be a firewall
later, I don't want any visitors right now :] )
Thanks.
Andreas
== andreas pålsson == did@algonet.se ==
> What does your route tables looks like, what does ifconfig give, what does
> ipchains -L give as output??
>
> Ron Rademaker
>
> On Wed, 14 Jun 2000, Andreas Palsson wrote:
>
> > Hello.
> >
> > Anyone got any good information on using Linux as a router?
> >
> > I have a Slink-box that is supposed to route traffic between 3 networks.
> > It's equipped with 3 3Com cards and on of them is connected to a
> > Cisco-router (Internet).
> >
> > Everything works between the two networks, but I can't get any traffic in
> > or out from the Cisco. Not even ping it.
> >
> > Any info, sites, docs can be helpful.
> >
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