Re: Debian and router
First of all, I guess you'll want ip masquerading, you'll have to put that
on in your ipchains. Can je ping outside from x.y.26.62 ? This is also the
box you really should set up masquerading!
Ron
On Wed, 14 Jun 2000, Andreas Palsson wrote:
> 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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