[Dnsmasq-discuss] i need dhcp-match to find a match for an encapsulated value

[Beta Tester]

> Gesendet: Donnerstag, 28. Januar 2021 um 12:30 Uhr
> Von: "Geert Stappers" <stappers at stappers.nl>
> > i need a match for the byte values 0x01 0x15 0x01
> >
> > i tried several combinations like:
> > dhcp-match=set:ipxe.version_1_21_1, 175, 235, 1b, 21b ,1b
> > dhcp-match=set:ipxe.version_1_21_1, 175, 235, 1:21:1
> > dhcp-match=set:ipxe.version_1_21_1, 175, 235, 01:15:01
> >
> > with no luck...
>
> Try
>   dhcp-match=set:ipxe.vera, 175, 235, 1,21,1
>   dhcp-match=set:ipxe.verc, 175, 235, 1,24,5
>
> Elaborated
>   short name
>     vera for 1.21.1
>     verc for 1.24.5
>   all comma separated decimal values

thank you Geert, for your answer.
unfortunately this does not work at all, because dnsmasq doesn't start up anymore with that line.

dhcp-match=set:ipxe.vera, 175, 235, 1,21,1

for that reason i tried to give the values separated by ':' or adding 'b' (for byte?) to each value

in "journalctl -xe" i found this error message:

dnsmasq[11379]: dnsmasq: syntax check OK.
dnsmasq[11380]: dnsmasq: bad IPv4 address at line 185 of /etc/dnsmasq.d/10-pxe-server
dnsmasq[11380]: bad IPv4 address at line 185 of /etc/dnsmasq.d/10-pxe-server
dnsmasq[11380]: FAILED to start up

it looks like dnsmasq try to interprets that numbers as IPv4 address.


BTW: in case it is important, i am using a debian distro, dnsmasq version is:
$ dnsmasq --version
Dnsmasq version 2.80  Copyright (c) 2000-2018 Simon Kelley
Compile time options: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth DNSSEC loop-detect inotify dumpfile