As Mike said, you don't need a broadcast address on a point-to-point link. As for the network, the first IP address in the/31 ***subnet*** would be used as the network. Still usable on a host. Regards, Christopher Hawker On Tue, 9 Jan 2024 at 11:45, Tim Allingham via Public < public@talk.mikrotik.com.au> wrote:
Hmm, but if we're being pedantic wouldn't there also be 0 usable addresses in a /31 once network ID and broadcast have been reserved?
On Tue, 9 Jan 2024, 10:36 am Karl Auer via Public, < public@talk.mikrotik.com.au> wrote:
On Tue, 2024-01-09 at 10:43 +1100, Mike Everest via Public wrote:
/31 is not really a 'subnet' anyway, in the sense that a subnet is really just a conceptual structure for a broadcast domain. More properly, I prefer to call /31 an 'address range' instead of 'subnet'
If we are going to get pedantic, let's call it by its One True Name, which is "prefix length".
All prefix lengths[1] are subnets, all subnets are address ranges, but not all address ranges are subnets.
It's subnets all the way down :-)
Regards, K.
[1] Oh alright, not zero then.
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Karl Auer (kauer@nullarbor.com.au) work +61 2 64957435 http://www.nullarbor.com.au mobile +61 428 957160
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au