On Mon, 2 Jul 2001, ahmad wrote:
> My aim is to make a four ethernet port router.For the testing purposes i have
>attached four rtl8139 ethernet cards with my LRP machine .
> They all are configured .Each ethernet card is attached to a single computer which
>will be soon shifted to a network of computers through a hub/switch.
> the details of my network is as follows.
> eth 0 = 192.168.1.2 is attached to computer A = 192.168.1.10
> eth 1 = 192.169.2.2. is attached to computer B = 192.168.2.10
> eth2 = 192.168.3.2 is attached to computer C = 192.168.3.10
> eth3 = 192.168.4.2 is attached to computer D = 192.168.4.10
>
> I am using LRP 2.9.8.
> The problem i am facing is that all of the four computers i.e A,B,C,D are pinging to
>LRP and LRP is also pinging to them
> I can c the entries of the four networks is the routing table of LRP using ip route
>command
> but the problem is that the computer A is not pinging to computer B.i need this to
>happen and then my real works start.
> Why they are not pinging?
> Is any probem with the network settings?
Kind of, but not on the LRP.
You need to set a default route on each of your client computers to the
LRP. The local network route is not enough to get the packet from A to
move toward B unless A knows how to get to 192.168.2.0/24 or A has a
default route to the LRP. Once the packet has reached B, there must
likewise be a default route to LRP or custom route to 192.168.1.0/24 from
B as well.
The default route solution is much preferred.
[...]
> ############################################################################
> # Port Fowarding
> ############################################################################
>
> # what should i do with it .i am solely interested in router right nowand just
>router .
>
> #should i use port forwarding
No. That is for masqueraded setups.
[...]
By the way, you should include diagnostics for any mechanisms you suspect
might be problems. See the Troubleshooting Request Howto at
leaf.sourceforge.net
(http://sourceforge.net/docman/display_doc.php?docid=1891&group_id=13751)
for suggested diagnostics. This allows reviewers to easily check that the
desired configuration statements are working and not skipped due to syntax
or missing required settings.
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