mDNS/bonjour forwarding
Closed, ResolvedPublicFEATURE REQUEST
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	c-po
	Sep 2 2017, 10:21 AM

Description

This one is a feature of my Ubiquity EdgeRouter-X.

I have multiple devices at home which use Airplay to stream media content. They use Bonjour/mDNS to identify themselfs on the local network, but they are not visible on any other VLAN.

Avahi is able of being a "mDNS repeater".

[reflector]
enable-reflector=yes

Proposal:

Add avahi package to the image
Port configuration scripts from Ubiquity EdgeMax router to VyOS

Configuration nodes:

service {
     mdns {
         reflector
         repeater {
             interface eth0
             interface eth2
             interface eth4
         }
     }
}

Details

Difficulty level: Normal (likely a few hours)
Version: -
Why the issue appeared?: Will be filled on close

Related Objects

Mentioned In: T3917: Use Avahi as mDNS repeater for IPv6 support

Event Timeline

c-po created this task.Sep 2 2017, 10:21 AM

c-po changed Difficulty level from Unknown (require assessment) to Normal (likely a few hours).

Status can be seen here: https://github.com/c-po/vyos-cfg-avahi

@UnicronNL could you please mirror https://github.com/c-po/vyos-cfg-avahi.git to https://github.com/vyos/vyos-cfg-avahi.git and set up a CI job? After this I can submit the appropriate merge requests for vyos-world abd vyos-build.

c-po moved this task from Need Triage to In Progress on the VyOS 1.2 Crux board.Sep 3 2017, 7:56 AM

Verified using iOS 10.3.3 accross VLANs. mDNS services like Airplay working.

Now waiting for CI builds and migration to https://github.com/vyos/vyos-cfg-avahi.git

c-po changed the task status from Open to In progress.Sep 3 2017, 8:10 AM

c-po triaged this task as Normal priority.

@syncer @dmbaturin Pull request ready: https://github.com/vyos/vyos-build/pull/10

@c-po https://github.com/vyos/vyos-cfg-avahi.git is created, and ci integration is also done.

c-po closed this task as Resolved.Sep 3 2017, 1:59 PM

c-po reopened this task as In progress.

c-po moved this task from In Progress to Finished on the VyOS 1.2 Crux board.

bertimus9 added a subscriber: bertimus9.Nov 28 2017, 7:38 PM

Using AVAHI as mDNS reflector has the big disadvantage that the reflection interface can not be specified. It will reflect the mDNS messages on ALL interfaces. Mdns-reflector does not have this problem. It needs to be configured which interface is used for repetition. Configuration is planned for vyos-1x package.

TODO: Add CI job for https://github.com/vyos/mdns-repeater when CI is back online

I wanted to add the following into the WiKi

== mDNS Repeater ==
VyOS (1.2.x) provides a Multicast DNS repeater functionality. Multicast DNS uses the 224.0.0.51 address, which is "administratively scoped" and does not leave the subnet. It re-broadcast mDNS packets from one interface to other interfaces.

 '''set service mdns repeater interface eth0'''
 '''set service mdns repeater interface eth1'''

Will re-broadcast all mDNS packets from 'eth0' to 'eth1'.

below == Dynamic DNS ==. Unfortunately this results in the error message: * Forbidden. Contains contacts. Message seems to be spam. *

@syncer any idea to bypass this?

try again please

Still the same

whitelisted again,
buggy system, try in 10 mins or so
hopefully will work this time

c-po closed this task as Resolved.Dec 9 2017, 2:57 PM

c-po claimed this task.

Worked, thanks
https://wiki.vyos.net/wiki/User_Guide#mDNS_Repeater

syncer edited projects, added VyOS 1.2 Crux (VyOS 1.2.0-rc1), VyOS-1.2.0-GA; removed VyOS 1.2 Crux.Oct 15 2018, 11:26 PM

syncer moved this task from Needs Triage to Finished on the VyOS 1.2 Crux (VyOS 1.2.0-rc1) board.Oct 15 2018, 11:58 PM

sarthurdev mentioned this in T3917: Use Avahi as mDNS repeater for IPv6 support.Oct 19 2021, 8:40 PM