[Dnsmasq-discuss] DHCPv6 default port
sparkofwisdom.cloud at gmail.com
Tue Dec 17 20:10:29 GMT 2013
I think dnsmasq process is bound to the right port, but it is not listening on udp6 part.
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:9697 0.0.0.0:* LISTEN 2103/python
tcp6 0 0 2001:db8:3::1:547 :::* LISTEN 2536/dnsmasq
tcp6 0 0 fe80::f816:3eff:fe0:547 :::* LISTEN 2536/dnsmasq
tcp6 0 0 2001:db8:192:168::1:547 :::* LISTEN 2533/dnsmasq
tcp6 0 0 fe80::f816:3eff:fe5:547 :::* LISTEN 2533/dnsmasq
udp6 0 0 2001:db8:3::1:547 :::* 2536/dnsmasq
udp6 0 0 fe80::f816:3eff:fe0:547 :::* 2536/dnsmasq
udp6 0 0 2001:db8:192:168::1:547 :::* 2533/dnsmasq
udp6 0 0 fe80::f816:3eff:fe5:547 :::* 2533/dnsmasq
On Dec 17, 2013, at 1:15 PM, Shixiong Shang <sparkofwisdom.cloud at gmail.com> wrote:
> Hi, expert:
> I am using dnsmasq as DHCPv6 server. By default, dnsmasq is bound to port 53. I used --port option to bind it to UDP/547, since this is what my DHCPv6 client sends the query to. However, the dnsmasq never saw the DHCPv6 packets coming in afterwards. Based on tcpdump, I could see DHCPv6 packets hit dnsmasq binding interface, but dnsmasq log didn't report anything.
> So I am wondering whether the port other than 53 is supported?
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