Question

[Leslie Rhorer]

     Phew! 'Much better.  I think.  I haven't seen any responses going 
out from  the seconday, but then only 4 have gone out so far from the 
primary.  It says the max mis-bal is 6, which I presume 6 means might go 
out one interface before the other catches up?  We will let it run an 
hour or so and see if the secondary catches up, and if the leases files 
are updated.

On 6/3/2022 8:23 AM, Leslie Rhorer wrote:
>
> On 6/3/2022 5:03 AM, Glenn Satchell wrote:
>> ok, now we are getting somewhere...
>>
>> Note startup error messages should be in syslog, or perhaps 
>> "systemctl status isc-dhcp-server" will show them.
>     I have it logging to /var/log/dhcp/dhcp.log with logrotate enabled 
> for the directory, but that doesn't really matter.
>>
>> So having the "wrong" network range would cause issues, the requests 
>> come in from a certain subnet, and the server tries to match the 
>> requests to a subnet definition, but of course on the secondary 
>> server it doesn't have 192.168.0.0 so it can't offer an address. That 
>> explains why there is no requests being served.
>     I think maybe you lost me.  Both are on the same /23 subnet, just 
> in one case not where I wanted them.  Both 192.168.0.200 - 240 and 
> 192.168.1.220 - 240 are on 192.168.0/23.
>>
>> Next in the failover peer section, both config files have "primary". 
>> One of them needs to be "secondary"
>     How the heck did that happen?  I could swear one was set to 
> "secondary".
>> , eg changing backup to be the back up server should have this as the 
>> failover peer setting. mclt is only specified on  primary. This would 
>> definitely be causing problems now as you have top primary failover 
>> peers for the same subnet. Before there were two different subnets, 
>> so no clashes as failover is done on a subnet by subnet basis. You 
>> could have different peers for each subnet for example.
>     Hmm, OK, maybe I follow.
>> With this change I think it should work now... fingers crossed :)
>>
>     Yeah.  What you said.