kern/59133: wg is pissing off mdnsd

[christos%zoulas.com@localhost]

>Number:         59133
>Category:       kern
>Synopsis:       wg provides no routes to its local endpoints making mdnsd upset
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 05 14:35:00 +0000 2025
>Originator:     Christos Zoulas
>Release:        NetBSD 10.99.12
>Organization:
	route me harder, inc.
>Environment:
System: NetBSD quasar.astron.com 10.99.12 NetBSD 10.99.12 (QUASAR) #46: Tue Mar 4 20:15:21 EST 2025 christos%quasar.astron.com@localhost:/usr/src/sys/arch/amd64/compile/QUASAR amd64
Architecture: x86_64
Machine: amd64
>Description:
	wg interfaces don't provide routes to their local endpoints
>How-To-Repeat:
	
>Fix:
	configure wg, run mdnsd observe /var/log/messages

[9:29am] 242>ifconfig wg0
wg0: flags=0x8041<UP,RUNNING,MULTICAST> mtu 1420
        status: active
        inet6 fe80::56bf:64ff:fe92:10c8%wg0/64 flags 0 scopeid 0x6
        inet6 fd00:2::1/64 flags 0
        inet 10.2.0.1/24 flags 0
[9:30am] 245>grep 'No route' /var/log/messages | tail -2
Mar  5 09:29:27 quasar mDNSResponder: Default: mDNSPlatformSendUDP got error 65 (No route to host) sending packet to 224.0.0.251 on interface 10.2.0.1/wg0/6
Mar  5 09:29:27 quasar mDNSResponder: Default: mDNSPlatformSendUDP got error 65 (No route to host) sending packet to ff02::fb on interface 10.2.0.1/wg0/6