[Dnsmasq-discuss] No DHCP leases handed on bridge interface

Sébastien Delafond seb at debian.org
Mon Jul 18 11:58:10 BST 2016

On 2016-07-16, Simon Kelley <simon at thekelleys.org.uk> wrote:
> Note that ISC dhcpd uses a very low level code to access packets,
> bypassing the whole of the kernel network stack and iptables. It
> essentially does the same as tcpdump or wireshark. Dnsmasq doesn't,
> it uses the kernel network stack. That may be a clue as to why ISC
> works but dnsmasq doesn't, especially the iptables bit. The usual
> problem is dumping packets with destination or
> packets with source

Thanks Simon and Albert, you guys were a big help: I didn't know ISC
used pcap, so I did not once think about iptables. As soon as I
flushed my rules, dnsmasq worked like a charm. Sorry for wasting your
time, and thanks again.



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