[Dnsmasq-discuss] No more random source port

Risto Suominen risto.suominen at gmail.com
Mon Mar 20 21:01:36 GMT 2017

Hi Albert,

Thanks for your help so far.

2017-03-20 22:18 UTC+02.00, Albert ARIBAUD <albert.aribaud at free.fr>:
> So, back to the basics: let's start with a capture of DNS traffic. Can
> you run wireshark or tcpdump on your Lubuntu and capture a few requests
> for resolution?
Attached a small pcap. What I did:
1) 'host google.com'
2) 'host google.fi'
3) 'host google.com'
4) 'host google.fi'

1) and 2) go through dnsmasq, and use same source port.

In this case I get an answer: this is a different router, a Zyxel.
I'll try to make this same test against TP-Link..

-------------- next part --------------
A non-text attachment was scrubbed...
Name: dns-01.pcap
Type: application/vnd.tcpdump.pcap
Size: 772 bytes
Desc: not available
URL: <http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/attachments/20170320/4b5f75d2/attachment.pcap>

More information about the Dnsmasq-discuss mailing list