Steven Barth wrote:
Hello,
it looks like there is an issue with the latest 2.44 version of Dnsmasq.
I recently upgraded the Dnsmasq on my router from 2.43 to 2.44 and it started
to refuse DNS-Queries from PCs in the LAN. Downgrading to 2.43 made it work
again.
This is the output of host on a PC in the LAN:
host -v kernel.org 192.168.2.1
Trying kernel.org
Received 28 bytes from 192.168.2.1#53 in 14 ms
Trying kernel.org
Using domain server:
Name: 192.168.2.1
Address: 192.168.2.1#53
Aliases:
Host kernel.org not found: 5(REFUSED)
Received 28 bytes from 192.168.2.1#53 in 12 ms
The same request on the router running Dnsmasq itself worked flawlessly:
root@OpenWrt:/# nslookup kernel.org 192.168.2.1
Server:192.168.2.1
Address 1: 192.168.2.1
Name: kernel.org
Address 1: 204.152.191.5 pub1.kernel.org
Address 2: 204.152.191.37 pub2.kernel.org
Running dnsmasq -qd for debug purposes:
the host-call produced the following output on the router:
dnsmasq: query[A] kernel.org from 192.168.2.2
dnsmasq: query[A] kernel.org from 192.168.2.2
the nslookup-call:
dnsmasq: query[PTR] 1.2.168.192.in-addr.arpa from 127.0.0.1
dnsmasq: query[PTR] 1.2.168.192.in-addr.arpa from 127.0.0.1
dnsmasq: query[PTR] 1.2.168.192.in-addr.arpa from 127.0.0.1
dnsmasq: query[] kernel.org from 127.0.0.1
dnsmasq: query[] kernel.org from 127.0.0.1
dnsmasq: query[] kernel.org from 127.0.0.1
This behaviour occured on both a Linksys WRT54GL (OpenWRT Kamikaze, MIPSel,
Linux 2.4/uclibc) and a Netgear WGT634U (OpenWRT Kamikaze, MIPSel, Linux
2.6/uclibc).
It seems that setting --min-port to anything from 1 to 65535 works around this
but I think this is not expected behaviour.
It's not, but it takes straight to the problem; thanks.
Expect a new release soon.
Cheers,
Simon.
The following patches have been applied before building (after being
refreshed):
https://dev.openwrt.org/cgi-bin/trac.fcgi/browser/trunk/package/dnsmasq/patches/101-ipv6.patch
https://dev.openwrt.org/cgi-bin/trac.fcgi/browser/trunk/package/dnsmasq/patches/102-rtnetlink.patch
compile time options: IPv6 GNU-getopt ISC-leasefile no-DBus no-I18N TFTP
Greetings
Steven
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