[PLUG] RedHat 8.0 Routing question

gilmanhunt at attbi.com gilmanhunt at attbi.com
Wed Nov 13 21:24:08 UTC 2002


Ok the crossover cable has been replaced with a powered on asante hub, with no 
change to the "destination host unreachable."  I've also learned about the /proc/sys/net/
ipv4/conf/eth1 (and eth0) directories; but that looks right.

-Russ
> crossover cables can give some flaky connections. Do you have
> a hub you can temporarily test the system with?
> 
> 
> On Wed, Nov 13, 2002 at 08:49:45PM +0000, gilmanhunt at attbi.com wrote:
> > They are connected via a crossover cable.  I will be needing port forwarding - 
> but at this 
> > point I can't verify that the systems are working right ;(
> > > 
> > > Why wouldn't you connect the two 192.168.1.X nics together?
> > > That got my sys's going last night, until I tried adding IP forwarding.
> > > Grr.
> > > 
> > > 
> > > 
> > > On 13 November 2002 at 20:15, gilmanhunt at attbi.com wrote:
> > > 
> > > I have: 
> > > 1) box with a nic of 192.168.1.2
> > > 2) box with a nic of 192.168.1.1 and a nic of 10.10.10.222
> > > 
> > > 2a) the box (gilgamesh- maybe I should have given it a more tractable name) 
> with 
> > > the 2 
> > > nics has this as it's route table:
> > > [root at gilgamesh root]# route -n
> > > Kernel IP routing table
> > > Destination     Gateway         Genmask         Flags Metric Ref    Use 
> Iface
> > > 192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
> > > 10.10.10.0      0.0.0.0         255.255.255.0   U     0      0        0 eth1
> > > 127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
> > > 0.0.0.0         10.10.10.1      0.0.0.0         UG    0      0        0 eth1
> > > 2b) This box has "echo 1 > /proc/sys/net/ipv4/ip_forward"
> > > 
> > > 2c) Box one and two are connected by a crossover ethernet cable
> > > between the 2 nics of the 192.168.1.x network
> > > 
> > > 3) I can't ping 192.168.1.1 from box one (the inside box) nor can
> > > I ping 192.168.1.2 from two (the external box) : the result is
> > > "destination host unreachable".
> > > 
> > > So obviously (to me) I'm having some sort of network routing     
> > > problem. Both computers are running redhat 8.0.                  
> > > 
> > > 
> > > 
> > > 
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> > 
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