[Bug 1921750] [NEW] ISC DHCP Server 4.3.5-3ubuntu7.2 stops working

Walt 1921750 at bugs.launchpad.net
Mon Mar 29 14:03:09 UTC 2021 

Public bug reported:

After updating isc-dhcp-server from 4.3.5-3ubuntu7.1 to 4.3.5-3ubuntu7.2 dhcpd failed to start
After downgrade dhcpd still working

# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.5 LTS
Release:	18.04
Codename:	bionic

# apt-cache policy isc-dhcp-server
isc-dhcp-server:
  Installed: 4.3.5-3ubuntu7.1
  Candidate: 4.3.5-3ubuntu7.2
  Version table:
     4.3.5-3ubuntu7.2 500
        500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
 *** 4.3.5-3ubuntu7.1 500
        500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
        100 /var/lib/dpkg/status
     4.3.5-3ubuntu7 500
        500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages

I expect dhcpd running
But it fqailed to start, reporting about bond0 interface, but there is no bond0 on the server

# ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:e0:29:c2 brd ff:ff:ff:ff:ff:ff
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
4: enp0s8.252 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
5: enp0s8.198 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
6: enp0s8.255 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
7: enp0s8.256 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
8: enp0s8.257 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff


syslog following:

Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: isc-dhcp-server6.service: Failed with result 'exit-code'.
Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: Reloading.
Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: Started ISC DHCP IPv4 server.
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Internet Systems Consortium DHCP Server 4.3.5
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Copyright 2004-2016 Internet Systems Consortium.
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: All rights reserved.
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: For info, please visit https://www.isc.org/software/dhcp/
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Config file: /etc/dhcp/dhcpd.conf
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Database file: /var/lib/dhcp/dhcpd.leases
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: PID file: /run/dhcp-server/dhcpd.pid
Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: Reloading.
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Wrote 10210 leases to leases file.
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.257 (no IPv4 addresses).
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.257.  If this is not what
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.257 is attached. **
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.256 (no IPv4 addresses).
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.256.  If this is not what
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.256 is attached. **
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.255 (no IPv4 addresses).
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.255.  If this is not what
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.255 is attached. **
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.252 (no IPv4 addresses).
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.252.  If this is not what
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.252 is attached. **
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Not configured to listen on any interfaces!
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: If you think you have received this message due to a bug rather
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: than a configuration issue please read the section on submitting
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: bugs on either our web page at www.isc.org or in the README file
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: before submitting a bug.  These pages explain the proper
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: process and the information we find helpful for debugging..
Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: exiting.
Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: isc-dhcp-server.service: Main process exited, code=exited, status=1/FAILURE
Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: isc-dhcp-server.service: Failed with result 'exit-code'.

** Affects: isc-dhcp (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1921750

Title:
  ISC DHCP Server 4.3.5-3ubuntu7.2 stops working

Status in isc-dhcp package in Ubuntu:
  New

Bug description:
  After updating isc-dhcp-server from 4.3.5-3ubuntu7.1 to 4.3.5-3ubuntu7.2 dhcpd failed to start
  After downgrade dhcpd still working

  # lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 18.04.5 LTS
  Release:	18.04
  Codename:	bionic

  # apt-cache policy isc-dhcp-server
  isc-dhcp-server:
    Installed: 4.3.5-3ubuntu7.1
    Candidate: 4.3.5-3ubuntu7.2
    Version table:
       4.3.5-3ubuntu7.2 500
          500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
   *** 4.3.5-3ubuntu7.1 500
          500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
          100 /var/lib/dpkg/status
       4.3.5-3ubuntu7 500
          500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages

  I expect dhcpd running
  But it fqailed to start, reporting about bond0 interface, but there is no bond0 on the server

  # ip link show
  1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
  2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
      link/ether 08:00:27:e0:29:c2 brd ff:ff:ff:ff:ff:ff
  3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
      link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
  4: enp0s8.252 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
      link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
  5: enp0s8.198 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
      link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
  6: enp0s8.255 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
      link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
  7: enp0s8.256 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
      link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff
  8: enp0s8.257 at enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
      link/ether 08:00:27:4d:fb:20 brd ff:ff:ff:ff:ff:ff

  
  syslog following:

  Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: isc-dhcp-server6.service: Failed with result 'exit-code'.
  Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: Reloading.
  Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: Started ISC DHCP IPv4 server.
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Internet Systems Consortium DHCP Server 4.3.5
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Copyright 2004-2016 Internet Systems Consortium.
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: All rights reserved.
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: For info, please visit https://www.isc.org/software/dhcp/
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Config file: /etc/dhcp/dhcpd.conf
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Database file: /var/lib/dhcp/dhcpd.leases
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: PID file: /run/dhcp-server/dhcpd.pid
  Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: Reloading.
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Wrote 10210 leases to leases file.
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.257 (no IPv4 addresses).
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.257.  If this is not what
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.257 is attached. **
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.256 (no IPv4 addresses).
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.256.  If this is not what
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.256 is attached. **
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.255 (no IPv4 addresses).
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.255.  If this is not what
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.255 is attached. **
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: No subnet declaration for bond1.252 (no IPv4 addresses).
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: ** Ignoring requests on bond1.252.  If this is not what
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    you want, please write a subnet declaration
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    in your dhcpd.conf file for the network segment
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]:    to which interface bond1.252 is attached. **
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: Not configured to listen on any interfaces!
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: If you think you have received this message due to a bug rather
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: than a configuration issue please read the section on submitting
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: bugs on either our web page at www.isc.org or in the README file
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: before submitting a bug.  These pages explain the proper
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: process and the information we find helpful for debugging..
  Mar 29 16:32:55 mn-wifidhcp02 sh[1369]: exiting.
  Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: isc-dhcp-server.service: Main process exited, code=exited, status=1/FAILURE
  Mar 29 16:32:55 mn-wifidhcp02 systemd[1]: isc-dhcp-server.service: Failed with result 'exit-code'.

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