DHCP RElay Help
dhcp1 at thehobsons.co.uk
Thu Mar 13 16:37:23 UTC 2008
Rhino Lists wrote:
>Thanks for the help. I had to put the new subnets into a new shared network
>of its own. Now everything works as expected. Just out of curiosity why
>would having all the subnets in one shared network try to issue wrong IP's
>to the other interface?
A shared network is a network segment where you have more than on IP
subnet sharing the same physical wire (technically broadcast domain I
think). Thus a device on the physical network may have an address
from any of the subnets.
The shared-network declaration tells the dhcp server about this setup.
What you seem to be asking is, if I falsely tell the server that ALL
my subnets are on the same bit of wire, why does it get things wrong
? The answer is that your configuration file must accurately depict
your network. If you have two subnets which are separated by a router
and do not share the same wire, then they are not a shared network
and must NOT be put into the same shared network declaration as each
other. It IS valid to have more than one shared network, each one
containing a number of IP subnets, but with a router between each
shared network and any other network or shared network.
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