I am used to seeing ip addresses of the form 10.244.0.1/24. What does an address cidr notation /32 mean ?
$ ip a
...snipped...
4 : flannel.1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1410 qdisc noqueue state UNKNOWN group default
[4/401]
link/ether 06:fb:8c:da:42:0b brd ff:ff:ff:ff:ff:ff
inet 10.244.0.0/32 scope global flannel.1
valid_lft forever preferred_lft forever
inet6 fe80::4fb:8cff:feda:420b/64 scope link
valid_lft forever preferred_lft forever
255.255.255.255
(or that it is the only IP in it's network).0
being a valid IP is new to me as well, don't feel bad :p.0
address isn't always the network address, and the network address doesn't always end in.0
(it's always the first address in the subnet). e.g. in a /23 network, the subnet spans from x.x.x.0 to x.x.x+1.255 - there is a valid.0
address in the middle of that. BTW, address classes have been obsolete for well over 20 years now - obsoleted by Classless Inter-Domain Routing (CIDR), the standard "address/prefix" used everywhere now.n.n.n.n
meaning (IMhO) that it can have any value. This is also related.