$ sudo ip netns exec ns1 ip address add 192.0.2.1/24 dev ns1-veth0
$ sudo ip netns exec ns2 ip address add 192.0.2.2/24 dev ns2-veth0
</pre>
*確認
<pre>
$ sudo ip netns exec ns1 ip address show
1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
4: ns1-veth0@if3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether ca:f0:3b:a9:2a:eb brd ff:ff:ff:ff:ff:ff link-netns ns2
inet 192.0.2.1/24 scope global ns1-veth0
valid_lft forever preferred_lft forever
</pre>