[Solved] Dnsmasq crash after flashing 19.07.2 -> 19.07.3 (keep settings)

[n8b]

Hi.
Thanks for 19.07.3
Flashing 19.07.3 on top of 19.07.2 keeping settings on wrt1200ac causes issues for me.

Thu May 21 16:42:04 2020 daemon.crit dnsmasq[2596]: bad DHCP host name at line 25 of /var/etc/dnsmasq.conf.cfg01411c
Thu May 21 16:42:04 2020 daemon.crit dnsmasq[2596]: FAILED to start up
Thu May 21 16:42:04 2020 daemon.info procd: Instance dnsmasq::cfg01411c s in a crash loop 6 crashes, 0 seconds since last crash

From what I can see the naming rules for hostnames in DHCP static lease has changed. Underscore is not valid in 19.07.3:

Regards.

[lleachii]

@n8b

Underscore is not valid in 19.07.3:

A hostname cannot contain an underscore, per RFCs.

(Yes, I understand your claim that it was valid in 19.07.2.)