macvlan on macvlan は動くのか
これを見ていて、ふと愚問が湧いた。 ネストしたらどうなるんだろう。
ネストできるのか興味が出たので試した。
作れる。まじか。
macvlan3 on eth0
sudo ip link add macvlan4 link macvlan3 type macvlan mode bridge
macvlan 4 on macvlan3
sudo ip link add macvlan4 link macvlan3 type macvlan mode bridge
dhcp for macvlan4
dhclient -v macvlan4
動く。
takuya@raspi-ubuntu:~$ sudo dhclient -v -r macvlan4 Killed old client process Internet Systems Consortium DHCP Client 4.4.1 Copyright 2004-2018 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/macvlan4/d2:27:17:3a:41:59 Sending on LPF/macvlan4/d2:27:17:3a:41:59 Sending on Socket/fallback DHCPRELEASE of 192.168.2.113 on macvlan4 to 192.168.2.1 port 67 (xid=0x24dec657)```
macvlan3/macvlan4 に同時にdhcpしてみる
41: macvlan3@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 26:c0:ec:88:cc:ec brd ff:ff:ff:ff:ff:ff
inet 192.168.2.113/24 brd 192.168.2.255 scope global dynamic macvlan3
valid_lft 43186sec preferred_lft 43186sec
inet6 fe80::24c0:ecff:fe88:ccec/64 scope link
valid_lft forever preferred_lft forever
42: macvlan4@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether d2:27:17:3a:41:59 brd ff:ff:ff:ff:ff:ff
inet 192.168.2.114/24 brd 192.168.2.255 scope global dynamic macvlan4
valid_lft 43198sec preferred_lft 43198sec
inet6 fe80::d027:17ff:fe3a:4159/64 scope link
valid_lft forever preferred_lft forever
まじか。ネストできるんじゃん。
実験環境
takuya@raspi-ubuntu:~$ uname -a Linux raspi-ubuntu 5.4.0-1046-raspi #50-Ubuntu SMP PREEMPT Thu Oct 28 05:32:10 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux
takuya@raspi-ubuntu:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.3 LTS Release: 20.04 Codename: focal
