Dynamic vs static IP allocation w/r known MAC with 2 servers
Niall.oReilly at ucd.ie
Thu Apr 26 10:23:40 UTC 2007
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On 26 Apr 2007, at 10:26, Emmanuel Halbwachs wrote:
> Is it possible that two DHCP servers (ISC) live together in the same
> VLAN, where the first always offer an IP address and the second no,
> but is prioritary when it answers?
No. The priority you suggest is a kind of state, which the two
servers have no way of sharing.
> Enter in the modern world of DHCP ;-) by allocating:
> - fixed address for known MAC addresses
> - dynamic IP in another subnet for unknown MAC addresses
You can do this with one DHCP server (or a failover pair, I guess).
I'll retrieve the relevant fragments of how we do it, but I'm busy
until Monday lunchtime. Please nag off-list if you don't have
something from me by Tuesday morning.
Hint: "deny known" ...
University College Dublin IT Services
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