Old Kernel & Supernetting

db

Anyone experienced in supernetting with old 2.4 versions of the Kernel...specifically Red Hat 7 or 8?

We setup a Red Hat 8 machine with the following IP:
192.168.50.26
Mask:
255.255.254.0
Broadcast:
192.168.51.255

Other machines on the same network can ping it, but it can't see or be seen by other networks. i.e. from 192.168.50.1 you can ping it, but from 172.16.20.239 you can't.
But you can see 192.168.50.1 from 172.16.20.239 and vice-versa. I think it may be a kernel config issue or some sort of network driver issue. The thing is I'm not allowed to upgrade the box, only possibly configure it, add rpms, and/or rebuild the kernel from the source that is on it.

Any thoughts?

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Cheers,
Dave Brown


Submitted by db on Tue, 2006-08-22 11:19. login or register to post comments

schultmc
schultmc's picture
routing

You need a route between the two different networks. I would typically do something like this with a machine with multiple network cards and iptables.


Tue, 2006-08-22 11:53 login or register to post comments

schultmc
schultmc's picture
HOWTO

The Advanced Routing HOWTO might be helpful.


Tue, 2006-08-22 11:55 login or register to post comments

db
db's picture
Actually it works with

Actually it works with Kernel 2.6.15, Fedora Core5 without any special routing. Are you saying you have to do that because it is an old machine?

Cheers,
Dave Brown
db@cinlug.org

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Cheers,
Dave Brown


Tue, 2006-08-22 15:45 login or register to post comments

schultmc
schultmc's picture
routing

No, I've just always done it with routing. I'll have to research this supernetting stuff - seems like it'd be useful for testing purposes.


Fri, 2006-09-01 17:45 login or register to post comments