[lxc-users] How to get rid of pesky extra dhcp IP

jjs - mainphrame jjs at mainphrame.com
Sat Apr 7 20:16:28 UTC 2018


Greetings,

Running lxd-3.0.0 on ubuntu 18.04 beta

I've set up a couple of new 16.04 cts and they act as I expect.

I set up an 18.04 ct and a persistent unwanted dhcp IP appears in the lxc
list:

root at ronnie:~# lxc list
+-----------+---------+------------------------+------+------------+-----------+
|   NAME    |  STATE  |          IPV4          | IPV6 |    TYPE    |
SNAPSHOTS |
+-----------+---------+------------------------+------+------------+-----------+
| dbserv111 | RUNNING | 192.168.111.221 (eth0) |      | PERSISTENT | 0
   |
+-----------+---------+------------------------+------+------------+-----------+
| kangal    | RUNNING | 192.168.111.44 (eth0)  |      | PERSISTENT | 0
   |
|           |         | 192.168.111.239 (eth0) |      |            |
   |
+-----------+---------+------------------------+------+------------+-----------+
| mg111     | RUNNING | 192.168.111.222 (eth0) |      | PERSISTENT | 0
   |
+-----------+---------+------------------------+------+------------+-----------+

However, inside the 18.04 container (kangal), only the static IP is listed:
root at kangal:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.111.44  netmask 255.255.255.0  broadcast
192.168.111.255
        inet6 fe80::216:3eff:fef3:857e  prefixlen 64  scopeid 0x20<link>
        ether 00:16:3e:f3:85:7e  txqueuelen 1000  (Ethernet)
        RX packets 80658  bytes 97973222 (97.9 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 56964  bytes 5320056 (5.3 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1400  bytes 115581 (115.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1400  bytes 115581 (115.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

root at kangal:~#

However I can ssh to this dhcp IP and gain access to the box.

Any clues as to how to get rid of this unwanted extra IP?

Jake
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