broadcast T5313: UDP Broadcast Broken (Equuleus)

[cuongdt1994]

In Example:

To forward all broadcast packets received on UDP port 1900 on eth3, eth4 or eth5 to all other interfaces in this configuration.

set service broadcast-relay id 1 description 'SONOS'
set service broadcast-relay id 1 interface 'eth3'
set service broadcast-relay id 1 interface 'eth4'
set service broadcast-relay id 1 interface 'eth5'
set service broadcast-relay id 1 port '1900'

When set more 2 interface, service udp broadcast not running and have error:

https://vyos.dev/file/data/sq7wcmruqazef5ld7shq/PHID-FILE-ot4zaecftehga4izek5s/image.png

and Remove interfaces:

https://vyos.dev/file/data/hgoibpsakrelap4dapmq/PHID-FILE-j464jvsnvypv76lrpm32/image.png

Change Summary

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T5313

Component(s) name

Proposed changes

How to test

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[c-po]

See #2055 (comment)