root@gw01.wag:~# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 52:54:1f:ac:af:a4 brd ff:ff:ff:ff:ff:ff
3: br-ffpb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
4: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master bat0 state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether c0:ff:ee:ba:be:01 brd ff:ff:ff:ff:ff:ff
5: bat0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ffpb state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
6: bb-wag-vpn: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 500
    link/ether 22:70:f4:cd:cf:91 brd ff:ff:ff:ff:ff:ff

root@gw01.wag:~# ip link add name bb-pad-cr01 type dummy
root@gw01.wag:~# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 52:54:1f:ac:af:a4 brd ff:ff:ff:ff:ff:ff
3: br-ffpb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
4: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master bat0 state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether c0:ff:ee:ba:be:01 brd ff:ff:ff:ff:ff:ff
5: bat0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ffpb state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
6: bb-wag-vpn: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 500
    link/ether 22:70:f4:cd:cf:91 brd ff:ff:ff:ff:ff:ff
42: bb-pad-cr01: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether f2:7c:da:8d:13:c2 brd ff:ff:ff:ff:ff:ff

root@gw01.wag:~# ip link add gre_ffrl_fra_a type dummy
root@gw01.wag:~# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 52:54:1f:ac:af:a4 brd ff:ff:ff:ff:ff:ff
3: br-ffpb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
4: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master bat0 state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether c0:ff:ee:ba:be:01 brd ff:ff:ff:ff:ff:ff
5: bat0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ffpb state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
6: bb-wag-vpn: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 500
    link/ether 22:70:f4:cd:cf:91 brd ff:ff:ff:ff:ff:ff
23: gre_ffrl_fra_a: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether be:0a:ef:72:62:86 brd ff:ff:ff:ff:ff:ff
42: bb-pad-cr01: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether f2:7c:da:8d:13:c2 brd ff:ff:ff:ff:ff:ff

root@gw01.wag:~# ip link del bb-pad-cr01 type dummy
root@gw01.wag:~# ip link add foo index 42 type dummy
root@gw01.wag:~# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 52:54:1f:ac:af:a4 brd ff:ff:ff:ff:ff:ff
3: br-ffpb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
4: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master bat0 state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether c0:ff:ee:ba:be:01 brd ff:ff:ff:ff:ff:ff
5: bat0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ffpb state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
6: bb-wag-vpn: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 500
    link/ether 22:70:f4:cd:cf:91 brd ff:ff:ff:ff:ff:ff
23: gre_ffrl_fra_a: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether be:0a:ef:72:62:86 brd ff:ff:ff:ff:ff:ff
42: foo: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether ca:4c:8b:46:69:f1 brd ff:ff:ff:ff:ff:ff

root@gw01.wag:~# ip link add bb-pad-cr01 type dummy
root@gw01.wag:~# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 52:54:1f:ac:af:a4 brd ff:ff:ff:ff:ff:ff
3: br-ffpb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
4: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master bat0 state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether c0:ff:ee:ba:be:01 brd ff:ff:ff:ff:ff:ff
5: bat0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ffpb state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether f2:74:3b:93:5e:b1 brd ff:ff:ff:ff:ff:ff
6: bb-wag-vpn: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 500
    link/ether 22:70:f4:cd:cf:91 brd ff:ff:ff:ff:ff:ff
7: bb-pad-cr01: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 46:33:42:c9:67:d0 brd ff:ff:ff:ff:ff:ff
23: gre_ffrl_fra_a: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether be:0a:ef:72:62:86 brd ff:ff:ff:ff:ff:ff
42: foo: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether ca:4c:8b:46:69:f1 brd ff:ff:ff:ff:ff:ff
root@gw01.wag:~#