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Service router-advert failed to start radvd with more then 3 name-servers
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Description

Service router-advert failed to start radvd with more then 3 name-servers
To reproduce:

set service router-advert interface eth1 default-preference 'high'
set service router-advert interface eth1 hop-limit '64'
set service router-advert interface eth1 name-server '2001:db8:1111::1'
set service router-advert interface eth1 name-server '2001:db8:1111::2'
set service router-advert interface eth1 name-server '2001:db8:1111::3'
set service router-advert interface eth1 name-server '2001:db8:1111::4'
set service router-advert interface eth1 no-send-advert
set service router-advert interface eth1 prefix 2001:db8::/64
commit

Logs:

[email protected]# sudo journalctl -u radvd
May 24 12:04:42 r14 systemd[1]: Stopping radvd.service - Router advertisement daemon for IPv6...
May 24 12:04:42 r14 systemd[1]: radvd.service: Deactivated successfully.
May 24 12:04:42 r14 systemd[1]: Stopped radvd.service - Router advertisement daemon for IPv6.
May 24 12:04:47 r14 systemd[1]: Starting radvd.service - Router advertisement daemon for IPv6...
May 24 12:04:47 r14 radvd[131995]: too many addresses in RDNSS section
May 24 12:04:47 r14 radvd[131995]: exiting, failed to read config file
May 24 12:04:47 r14 systemd[1]: radvd.service: Control process exited, code=exited, status=1/FAILURE
May 24 12:04:47 r14 systemd[1]: radvd.service: Failed with result 'exit-code'.
May 24 12:04:47 r14 systemd[1]: Failed to start radvd.service - Router advertisement daemon for IPv6.
[edit]
[email protected]#

Status

[email protected]# sudo systemctl status radvd
× radvd.service - Router advertisement daemon for IPv6
     Loaded: loaded (/lib/systemd/system/radvd.service; disabled; preset: enabled)
    Drop-In: /etc/systemd/system/radvd.service.d
             └─override.conf
     Active: failed (Result: exit-code) since Wed 2023-05-24 12:04:47 EEST; 7s ago
       Docs: man:radvd(8)
    Process: 131995 ExecStartPre=/usr/sbin/radvd --logmethod stderr_clean --configtest --config /run/radvd/radvd.conf (code=exited, status=1/FAILURE)
        CPU: 11ms

May 24 12:04:47 r14 systemd[1]: Starting radvd.service - Router advertisement daemon for IPv6...
May 24 12:04:47 r14 radvd[131995]: too many addresses in RDNSS section
May 24 12:04:47 r14 radvd[131995]: exiting, failed to read config file
May 24 12:04:47 r14 systemd[1]: radvd.service: Control process exited, code=exited, status=1/FAILURE
May 24 12:04:47 r14 systemd[1]: radvd.service: Failed with result 'exit-code'.
May 24 12:04:47 r14 systemd[1]: Failed to start radvd.service - Router advertisement daemon for IPv6.
[edit]
[email protected]#

This bug with radvd described here https://github.com/radvd-project/radvd/issues/182

Details

Difficulty level
Unknown (require assessment)
Version
VyOS 1.4-rolling-202305210317
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Unspecified (possibly destroys the router)
Issue type
Bug (incorrect behavior)

Event Timeline

Viacheslav renamed this task from Service router-advert failed to start radvd with more then 3 name-server to Service router-advert failed to start radvd with more then 3 name-servers.Wed, May 24, 9:07 AM
Viacheslav created this task.
Viacheslav added a project: VyOS 1.3 Equuleus (1.3.4).
Viacheslav updated the task description. (Show Details)
pasik added a subscriber: pasik.Wed, May 24, 1:01 PM
c-po claimed this task.Sun, May 28, 1:11 PM
c-po moved this task from Need Triage to Finished on the VyOS 1.4 Sagitta board.Sun, May 28, 1:24 PM
c-po moved this task from Need Triage to Finished on the VyOS 1.3 Equuleus (1.3.4) board.Sun, May 28, 1:31 PM
c-po added a comment.Sun, May 28, 1:36 PM

PR for VyOS 1.3 LTS branch https://github.com/vyos/vyos-1x/pull/2019