Ethernet (ip a) how to figure out to which host they belong

L

liszca

Well-Known Member
May 8, 2020
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I had a "failed" snapshot. So I migrated the LXC based LDAP server. But here my problems began Snapshot rollback didn't help. Restore from backup also didn't help. The LDAP Server kept vanishing and appearing as if there was the same IP Address assigned on two differnt Server.

After my desperation move, restarting PVE Server all LDAP problems where gone.

In hind side I should have looked for old interfaces, but how do I know which one?
its about ip a
Code: 
53: fwln120i0@fwpr120p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr120i0 state UP group default qlen 1000
    link/ether 4e:db:b8:28:3d:a4 brd ff:ff:ff:ff:ff:ff
54: veth122i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr122i0 state UP group default qlen 1000
    link/ether fe:7a:fb:d7:00:e1 brd ff:ff:ff:ff:ff:ff link-netnsid 10
55: fwbr122i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether d2:85:e4:87:3d:a0 brd ff:ff:ff:ff:ff:ff
56: fwpr122p0@fwln122i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether d6:da:41:63:c4:06 brd ff:ff:ff:ff:ff:ff
57: fwln122i0@fwpr122p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr122i0 state UP group default qlen 1000
    link/ether d2:85:e4:87:3d:a0 brd ff:ff:ff:ff:ff:ff
58: veth123i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr123i0 state UP group default qlen 1000
    link/ether fe:d8:52:e7:a4:b5 brd ff:ff:ff:ff:ff:ff link-netnsid 11
59: fwbr123i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether aa:b4:6a:f9:d9:20 brd ff:ff:ff:ff:ff:ff
60: fwpr123p0@fwln123i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 06:60:26:14:b7:e7 brd ff:ff:ff:ff:ff:ff
61: fwln123i0@fwpr123p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr123i0 state UP group default qlen 1000
    link/ether aa:b4:6a:f9:d9:20 brd ff:ff:ff:ff:ff:ff
66: veth126i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr126i0 state UP group default qlen 1000
    link/ether fe:ef:65:bf:9f:c6 brd ff:ff:ff:ff:ff:ff link-netnsid 13
67: fwbr126i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether aa:81:16:c1:90:c0 brd ff:ff:ff:ff:ff:ff
68: fwpr126p0@fwln126i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 06:cb:02:88:05:de brd ff:ff:ff:ff:ff:ff
69: fwln126i0@fwpr126p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr126i0 state UP group default qlen 1000
    link/ether aa:81:16:c1:90:c0 brd ff:ff:ff:ff:ff:ff
70: veth129i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr129i0 state UP group default qlen 1000
    link/ether fe:12:36:6c:d2:23 brd ff:ff:ff:ff:ff:ff link-netnsid 14
71: fwbr129i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7e:42:ac:c3:52:8a brd ff:ff:ff:ff:ff:ff
72: fwpr129p0@fwln129i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 8e:9d:01:80:ea:78 brd ff:ff:ff:ff:ff:ff
73: fwln129i0@fwpr129p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr129i0 state UP group default qlen 1000
    link/ether 7e:42:ac:c3:52:8a brd ff:ff:ff:ff:ff:ff
74: veth130i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr130i0 state UP group default qlen 1000
    link/ether fe:ca:a0:3e:8c:d8 brd ff:ff:ff:ff:ff:ff link-netnsid 15
75: fwbr130i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether d6:a5:43:72:11:d6 brd ff:ff:ff:ff:ff:ff
76: fwpr130p0@fwln130i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 56:5b:e7:39:80:0d brd ff:ff:ff:ff:ff:ff
77: fwln130i0@fwpr130p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr130i0 state UP group default qlen 1000
    link/ether d6:a5:43:72:11:d6 brd ff:ff:ff:ff:ff:ff
78: veth124i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr124i0 state UP group default qlen 1000
    link/ether fe:4e:f1:a2:33:eb brd ff:ff:ff:ff:ff:ff link-netnsid 12
79: fwbr124i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 36:af:45:f7:62:30 brd ff:ff:ff:ff:ff:ff
80: fwpr124p0@fwln124i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 8e:c1:84:fa:11:61 brd ff:ff:ff:ff:ff:ff
81: fwln124i0@fwpr124p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr124i0 state UP group default qlen 1000
    link/ether 36:af:45:f7:62:30 brd ff:ff:ff:ff:ff:ff

Is there a way to get the LXC container belonging to the interface?
 
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