Re: unable to route traffic between two networks on Red Hat 6.2

[Ian Zapczynski <ianz@quarterleaf.com>]

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Thanks very much for the suggestion.  This was indeed something I missed and
will make a note of.

I set /etc/sysctl.conf, rebooted, and confirmed that
/proc/sys/net/ipv4/ip_forward contained "1", but I still can't do a ping -I
192.168.1.1 10.1.1.1 nor a traceroute -i eth1 10.1.1.1.

I hope it's just one other minor piece I'm missing.

Thanks,

-Ian



Jeff Largent wrote:

> echo 1 > /proc/sys/net/ipv4/ip_forward
>
> and to make it take effect everytime the sys boots edit
> /etc/sysctl.conf change
> net.ipv4.ip_forward = 0
> to
> net.ipv4.ip_forward = 1
>
> Ian Zapczynski wrote:
> > Hello all.
> >
> > I am a Sun administrator needing to get a router set up on Red Hat 6.2.
> > I am simply trying to join two private networks, 192.168.0.0 and
> > 10.1.1.0.  The router I have configured has eth0 at 10.1.1.100 and eth1
> > at 192.168.1.1.  I do not need to be able to route traffic to the
> > internet using NAT -- I only need a DHCP server on my 192.168.0.0
> > network to give out IP addresses on that network (this works fine) that
> > will allow users to access the 10.1.1.0 network.
> >
> > On my router, currently I can ping an address on the 10.1.1.0 network,
> > but not when I use something like ping -I 192.168.1.1 10.1.1.1 to do
> > so.  This should work, right?
> >
> > /etc/sysconfig/network looks like:
> >
> > NETWORKING=yes
> > HOSTNAME=myhost.mydomain
> > GATEWAYDEV=eth0
> > GATEWAY=10.1.1.1
> > FORWARD_IPV4=YES
> >
> > /etc/sysconfig/static-routes has:
> >
> > eth1 net 192.168.0.0 netmask 255.255.0.0 gw 192.168.1.1
> > eth0 net 10.1.1.0 netmask 255.255.255.0 gw 10.1.1.100
> >
> > Can anyone please point out what I am missing or otherwise doing wrong?
> > Even if the answer is "buy a book", a suggestion on which one might help
> > me is welcome also.
> >
> > Again, I don't need to be concerned about NAT, firewalls or security at
> > this point, which is why I haven't touched ipchains for this purpose.  I
> > assume I don't need it only to route traffic between two networks, no?
> >
> > Thanks much in advance!
> >
> > -Ian

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