Marc Luethi <[email protected]> writes: > UDP Checksums and validation. > > So you might want to investigate if... > > - the windows machines that get fast answers do send UDP checksums at > all > - if your machine fills in the UDP checksum when running with dnsmasq > - if your machine fills in the UDP checksum when running without dnsmasq > > - if DNS datagrams leaving your network have valid UDP checksums > > - if either set of the fast/slow servers do UDP checksum validation on > incoming datagrams (while accepting datagrams that don't have a > checksum) > - if DNS datagrams arriving at the remote DNS server still have valid > UDP checksums.[2]
Fascinating possibilities... Given that I am neither a system administrator nor a network specialist, there is a limit to what I can do. For example, examining traffic leaving our network is, at least in the short run, out of my scope. What I think that I will do, now that I have read your post, is to try the following in the next couple of weeks when I have the time: 1. Disable dnsmasq, since it's really not the troublemaker here, it just does not solve the issue. 2. Run dig queries on the fast / slow nameservers, and examine the resulting DNS traffic with wireshark to see whether I can spot a difference. I think I could manage to do that, and even learn something in the process. Your input was much appreciated. --- Jarmo _______________________________________________ networkmanager-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/networkmanager-list
