Option 50 in failover mode

[Abu Abdulla alhanbali]

Hi,

i would appreciate if someone can identify the cases where the server
ignores option 50 "dhcp-requested-address".

i have a failover mode in which the client needs to sustain the same
IP (if rebooted) as far it is not expired. in some cases the "secs"
field exceeds the max load balance resulting the other server to
response with different IP. we implement option 50 in the client and
now the second server starts to give us the same IP:

- is it guaranteed that this will be the behavior all the time?
- is this assignment because the two servers are synced and the second
server is just informing the user that your previous IP is still
active. what will happens if this is done before syncing? what is the
period between syncing?
- will a server ignore option 50 in case the ip is in the backup pool.