I don't know how the BMU handles DHCP database sync itself, but if
it's like ISC's DHCP, it sync's internally, in which case, you'd
just add the 2nd BMU IP address to your one DHCP relay entry. In
this scenario, both BMU's would receive DHCP discover packets
simultaneously and if they're like ISC's DHCP, they'd decide via
their internal algorithm which server provides the lease.
Jesse DuPont
Network
Architect
email: jesse.dup...@celeritycorp.net
Celerity Networks LLC
Celerity
Broadband LLC
Like us! facebook.com/celeritynetworksllc
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On 2/7/17 9:04 AM, That One Guy
/sarcasm wrote:
We use DHCP relay at our site routers to one of our
two mirrored BMUs
we had a link go down yesterday for a period, as the leases
expired, they could not renew
All the affected customers could still get to the mirrored
BMU
How do I configure the relay in mikrotik to use the second
server if the first is not available (these are static
leases). Is it as simple as just putting a second target? Or
do I create a second relay with a higher delay. Or is this not
the appropriate mechanism for a failover DHCP server?
A big concern is what happens with unregistered devices,
they get a dynamic IP from a dynamic pool for the site, the
static leases should work, even if both servers are queried,
but Im concerned the dynamic would end up with conflicting
assignments
--
If you only see yourself
as part of the team but you don't see your team
as part of yourself you have already failed as
part of the team.
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