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VRRP - Error if using IPv6 Link Local as hello source address
Closed, ResolvedPublicBUG


While using an IPv6 Link Local address as hello-source-address, an unexpected error occurs and commit fails:

vyos@vyos# commit
[ high-availability ]
VyOS had an issue completing a command.
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Report time:      2023-09-18 05:05:42
Image version:    VyOS 1.5-rolling-202309170024
Release train:    current
Built by:         [email protected]
Built on:         Sun 17 Sep 2023 01:47 UTC
Build UUID:       ba889739-2b8e-4de4-8bd9-10b665f66abb
Build commit ID:  2ca594db0d1fe2
Architecture:     x86_64
Boot via:         installed image
System type:      KVM guest
Hardware vendor:  QEMU
Hardware model:   Standard PC (i440FX + PIIX, 1996)
Hardware S/N:
Hardware UUID:    a944d98c-89ce-48e2-a019-9c74215f6854
Traceback (most recent call last):
  File "/usr/libexec/vyos/conf_mode/", line 214, in <module>
  File "/usr/libexec/vyos/conf_mode/", line 199, in apply
    if is_ipv6_tentative(interface, ipv6_address):
  File "/usr/lib/python3/dist-packages/vyos/utils/", line 147, in is_ipv6_tentative
    for addr_info in data[0]['addr_info']:
IndexError: list index out of range
[[high-availability]] failed
Commit failed


Difficulty level
Easy (less than an hour)
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Perfectly compatible
Issue type
Bug (incorrect behavior)