DHCP Redundancy

Simon Hobson dhcp1 at thehobsons.co.uk
Thu Dec 2 14:17:13 UTC 2010

Fixing top posting and trimming redundant text ...

Nathan McDavit-Van Fleet wrote:
>But aren't they all connected to the same root gateway? A single DHCP server
>should be able to serve that easily. If you have multiple subnets you just
>need to have IP Helper to forward all the DHCP requests to your server. IMHO
>two failed-over servers can service thousands of users without much issue.

Have you been following the thread at all ?

Yes, *WE* all know that, but the OP isn't happy about not having a 
DHCP server at each node in an unreliable network (sounds like a 
community access project). I made exactly the same point in my last 
email - if the clients can't reach the internet gateway, then it is 
important if they can't reach the DHCP server co-located there ?

It also sounds like it's not an issue if clients change address, in 
which case it would be trivial to have multiple (non-failover) 
servers offering up non-overlapping ranges in the same subnet (I 
think he has a flat network acorss these sites).

Simon Hobson

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