===== COMMAND =====: for ns in $(ip netns list); do echo Namespace: ${ns}; ip netns exec ${ns} ip a; done
===== RETURN CODE =====: 0
===== STDOUT =====:
[10.20.0.7] out: Namespace: haproxy
[10.20.0.7] out: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
[10.20.0.7] out:     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
[10.20.0.7] out:     inet 127.0.0.1/8 scope host lo
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out:     inet6 ::1/128 scope host 
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out: 23: hapr-ns: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
[10.20.0.7] out:     link/ether a6:a3:47:e7:98:47 brd ff:ff:ff:ff:ff:ff
[10.20.0.7] out:     inet 240.0.0.2/30 scope global hapr-ns
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out:     inet6 fe80::a4a3:47ff:fee7:9847/64 scope link 
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out: 29: b_public: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
[10.20.0.7] out:     link/ether 0e:72:d3:65:07:23 brd ff:ff:ff:ff:ff:ff
[10.20.0.7] out:     inet 190.10.1.16/24 scope global b_public
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out:     inet6 fe80::c72:d3ff:fe65:723/64 scope link 
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out: Namespace: vrouter
[10.20.0.7] out: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
[10.20.0.7] out:     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
[10.20.0.7] out:     inet 127.0.0.1/8 scope host lo
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out:     inet6 ::1/128 scope host 
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out: 21: vr-host-ns: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
[10.20.0.7] out:     link/ether ce:25:40:5d:31:21 brd ff:ff:ff:ff:ff:ff
[10.20.0.7] out:     inet 240.0.0.6/30 scope global vr-host-ns
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out:     inet6 fe80::cc25:40ff:fe5d:3121/64 scope link 
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out: 25: conntrd: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
[10.20.0.7] out:     link/ether 9a:1c:7c:e5:a4:a3 brd ff:ff:ff:ff:ff:ff
[10.20.0.7] out:     inet 240.1.0.5/24 scope global conntrd
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out:     inet6 fe80::981c:7cff:fee5:a4a3/64 scope link 
[10.20.0.7] out:        valid_lft forever preferred_lft forever
[10.20.0.7] out: 

===== STDERR =====:
