Yes a NIC can have more than one ip address. I am guessing it is DHCP related. The old leases may not have expired but usually, DHCP does a good job at not allowing that to happen. Remember from a network perspective the only real difference between a linux workstation and a router is enabling packet forwarding.
On Wed, Feb 1, 2017 at 3:49 PM, Mick <michaelkintz...@gmail.com> wrote: > I've rolled up a kernel for a MacBook Pro and I am wondering what might I > have > set up in there to end up with 3 sequential IP addresses ... > > 2: enp10s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP > group > default qlen 1000 > link/ether 0c:4d:e9:cb:65:a4 brd ff:ff:ff:ff:ff:ff > inet 10.10.10.14/24 brd 10.10.10.255 scope global dynamic enp10s0 > valid_lft 86377sec preferred_lft 86377sec > inet 10.10.10.15/24 brd 10.10.10.255 scope global secondary dynamic > enp10s0 > valid_lft 86377sec preferred_lft 86377sec > inet 10.10.10.16/24 brd 10.10.10.255 scope global secondary enp10s0 > valid_lft forever preferred_lft forever > inet6 fe80::6ec7:552c:e2fa:7497/64 scope link > valid_lft forever preferred_lft forever > > I haven't seen this before on my desktops, only on routers. What setting > might control this? > -- > Regards, > Mick