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Maniphest T3626

Configuring and disabling DHCP Server
Closed, ResolvedPublicBUG
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Description

:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::::: Configuring and Disabling DHCP Server :::::::
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
set int eth eth3 descript "LAN"
set int eth eth3 address 10.100.100.1/24
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 default-router 10.100.100.1
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 dns-server 8.8.8.8
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 range 0 start 10.100.100.100
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 range 0 stop 10.100.100.150
commit

  • Until this, everything worked as expected:
    • Commit OK
    • DHCP Server running ok, and I configure a client and gets IP from de server.

set service dhcp-server shared-network-name LAN disable
commit

  • Version 1.2.7 --> NOT OK
    • DHCP server configuration error!
    • None of configured DHCP subnets does not have appropriate primary IP address on any broadcast interface.
    • service dhcp-server failed
    • Commit failed
  • Version 1.3 and 1.4 --> NOT OK
    • None of the configured subnets have an appropriate primary IP address on any broadcast interface configured, nor was there an explicit listen-address configured for serving DHCP relay packets!
    • service dhcp-server failed
    • Commit failed

Details

Difficulty level
Unknown (require assessment)
Version
1.2.7 - 1.3 - 1.4
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Unspecified (possibly destroys the router)
Issue type
Unspecified (please specify)

Related Objects

Mentioned In
1.2.9

Event Timeline

n.fort created this task.Jun 15 2021, 5:56 PM
pasik added a subscriber: pasik.Jun 15 2021, 6:35 PM
syncer edited projects, added VyOS 1.2 Crux (VyOS 1.2.9); removed VyOS 1.2 Crux (VyOS 1.2.7).Jul 19 2021, 8:49 PM
syncer assigned this task to Viacheslav.Oct 17 2021, 3:13 PM
syncer triaged this task as Normal priority.
syncer edited projects, added VyOS 1.3 Equuleus (1.3.0-epa3); removed VyOS 1.3 Equuleus.
n.fort added a comment.Oct 20 2021, 12:21 PM

Error still present in 1.3.0-epa2 version:

vyos@vyos# set service dhcp-server shared-network-name LAN disable 
[edit]
vyos@vyos# commit
[ service dhcp-server ]
None of the configured subnets have an appropriate primary IP address on any
broadcast interface configured, nor was there an explicit listen-address
configured for serving DHCP relay packets!

[[service dhcp-server]] failed
Commit failed
Viacheslav added a comment.Oct 20 2021, 12:32 PM

To disable shared-network at least one shared network should be working. The second can be disabled without issues.

n.fort added a comment.Oct 20 2021, 12:56 PM

So, in a very very simple config like this, user is not able to enable and disable dhcp-server with just a simple command?

set int eth eth3 descript "LAN"
set int eth eth3 address 10.100.100.1/24
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 default-router 10.100.100.1
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 dns-server 8.8.8.8
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 range 0 start 10.100.100.100
set service dhcp-server shared-network-name LAN subnet 10.100.100.0/24 range 0 stop 10.100.100.150

The solution to this scenario would be to delete the config?

n.fort added a comment.Oct 20 2021, 1:02 PM

Well.. Actually when only one dhcp-server shared network is defined, service can be disbable with global disable for dhcp-server

set service dhcp-server disable

And when multiple dhcp-server are present, it can be disable individually.
Example:

vyos@vyos# run show config comm | grep dhcp
set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 default-router '192.168.50.1'
set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 name-server '8.8.8.8'
set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 range 0 start '192.168.50.100'
set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 range 0 stop '192.168.50.150'
set service dhcp-server shared-network-name LAN-eth3 disable
set service dhcp-server shared-network-name LAN-eth3 subnet 10.100.100.0/24 default-router '10.100.100.1'
set service dhcp-server shared-network-name LAN-eth3 subnet 10.100.100.0/24 name-server '8.8.8.8'
set service dhcp-server shared-network-name LAN-eth3 subnet 10.100.100.0/24 range 0 start '10.100.100.100'
set service dhcp-server shared-network-name LAN-eth3 subnet 10.100.100.0/24 range 0 stop '10.100.100.150'
Viacheslav added a comment.Oct 21 2021, 5:03 PM

PR https://github.com/vyos/vyos-1x/pull/1035

vyos@r1-roll# set service dhcp-server shared-network-name LAN-eth2 disable
[edit]
vyos@r1-roll# set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 default-router '192.168.50.1'
[edit]
vyos@r1-roll# set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 name-server '8.8.8.8'
[edit]
vyos@r1-roll# set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 range 0 start '192.168.50.100'
[edit]
vyos@r1-roll# set service dhcp-server shared-network-name LAN-eth2 subnet 192.168.50.0/24 range 0 stop '192.168.50.150'
[edit]
vyos@r1-roll# commit
[ service dhcp-server ]
At least one shared network must be active!

[[service dhcp-server]] failed
Commit failed
[edit]
vyos@r1-roll#
Viacheslav changed the task status from Open to In progress.Oct 21 2021, 5:03 PM
c-po changed the task status from In progress to Needs testing.Oct 21 2021, 5:57 PM
c-po moved this task from Need Triage to Finished on the VyOS 1.3 Equuleus (1.3.0-epa3) board.
c-po moved this task from Need Triage to Finished on the VyOS 1.4 Sagitta board.
c-po set Issue type to Unspecified (please specify).
Viacheslav added a comment.Oct 30 2021, 7:38 AM

PR for crux https://github.com/vyos/vyos-1x/pull/1056

Viacheslav closed this task as Resolved.Nov 7 2021, 8:49 AM
Viacheslav moved this task from Needs Triage to Finished on the VyOS 1.2 Crux (VyOS 1.2.9) board.
narey83 added a subscriber: narey83.Sep 29 2022, 12:46 PM

Yeah, that new nightly release has fixed the issue, thanks. Strangely now getting some weird message in my show commands (WARNING: terminal is not fully functional). This message wasn't there on the previous nightly.

:narey@vyos:~$ show nat destination rules

WARNING: terminal is not fully functional - (press RETURN)Rule Source Destination Proto In-Int Translation ------ --------- ------------- ------- -------- ------------- 100 0.0.0.0/0 0.0.0.0/0 TCP pppoe0 192.168.0.10 sport any dport 80,443 101 0.0.0.0/0 0.0.0.0/0 any pppoe0 192.168.0.10 sport any dport 80 port 80 120 0.0.0.0/0 0.0.0.0/0 any pppoe0 192.168.0.100 sport any dport 65301 port 65301 130 0.0.0.0/0 0.0.0.0/0 any pppoe0 192.168.0.100 sport any dport 65302 port 65302 140 0.0.0.0/0 0.0.0.0/0 any pppoe0 192.168.0.10 sport any dport 9443 port 9443 200 0.0.0.0/0 84.64.75.217 TCP eth1 192.168.0.10 sport any dport 80,443
narey83 added a comment.Sep 29 2022, 12:58 PM

Sorted out the WARNING: terminal is not fully functional message with adding the following export command: -

export TERM=xterm

dmbaturin mentioned this in 1.2.9.Feb 23 2023, 5:20 PM