Using OMAPI to release a DHCP lease on a failover pair

[Bill Shirley]

https://en.wikipedia.org/wiki/IPv4#First_and_last_subnet_addresses

I'm speaking about the subnet assigned to the NIC.

Bill

On 7/30/2020 4:20 PM, sthaug at nethelp.no wrote:
>> Interesting. You would only have two available addresses, right? The network address and the broadcast address? Which one does the device answer to?
> When using IPv4 /31 there's really no "network address" or "broadcast
> address". There are simply two IP addresses. One is the router and the
> other is the client. Supported by lots of equipment, and also ISC
> DHCP.
>
> Example:
>
> # Router is at lowest address of the /31
> subnet 172.16.1.10 netmask 255.255.255.254
> {
>          option routers 172.16.1.10;
>          range 172.16.1.11 172.16.1.11;
> }
>
> but you could also do
>
> # Router is at highest address of the /31
> subnet 172.16.1.10 netmask 255.255.255.254
> {
>          option routers 172.16.1.11;
>          range 172.16.1.10 172.16.1.10;
> }
>
> There is no magic here.
>
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
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