-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 06/15/2017 03:00 PM, Philip Le Riche wrote: > > > On 15/06/2017 21:20, Tom Eastep wrote: >> On 06/15/2017 07:10 AM, Philip Le Riche wrote: >>> We have Shorewall 4 protecting the school network from a group >>> of Raspberry Pis, which we operate from PCs on the school >>> network using VNC running through Shorewall. For some weeks >>> we've had frequent problems with VNC sessions hanging for >>> around 30 seconds. I've been trying to track it down with >>> increasingly focussed Wireshark captures, and this is what >>> seems to be happening on one fairly typical hang: >> > ... snip... >> >> Are you monitoring ARP traffic between the Shorewall box and the >> School network? >> >> -Tom > ARP was about the first thing that I filtered out in my capture > filter as there was so much of it on the school network. Is this > significant? >
It is the first thing that I would want to look at when traffic suddenly stops then later starts again. Also, are you seeing any errors (ip -s link ls) on the school network NIC? - -Tom - -- Tom Eastep \ Q: What do you get when you cross a mobster with Shoreline, \ an international standard? Washington, USA \ A: Someone who makes you an offer you can't http://shorewall.org \ understand \_______________________________________________ -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJZQ/sSAAoJEJbms/JCOk0QbXsQAJBTobmvPRVbrquxeUTOuS6H 5u3ZQSSKBbus3Mf8ASTzZ1gswBUX+7jHZsz+VtfjpfDfbUGJF7QJ4AfPVB1gpfmh FtdXHdoRs/A3GpUzjThYKgU+jARmlXnDdYADom5s8TojizS+8C+BezMd6M7c43ii 5ofuOeDSVTD1JBGjlxZNO5+H1EXzEMYy2t2BzuCFlh0m4HcdUHvb6SqHQi1sDYaU 1pxH9UTvngdQAk35IvgB1ahmeLsMAgslvsQViL9pl9x0WdNSVqs4G2l3K4QEoSXu Blx7RsIIxxrKifksfiRxCwkJ17xCgN0ij7rU/Qun97uJDYlnYV/xpYL9BeIOeYpf 0aXtAieEUSyohclEpUQUo9AeCiOurrOB/2gJwzEAr2L+MDPY7UdGQXcUV81xA8zu 5c8xV7QEzAlVHqksXUL0aDYgDdlGVszfdxiKYcnAPpLPF6q9G7cNVkUBcO6YKhtw YrZw0t/TyLwitRGNu+ZwGnfJzOstSVKnqhs3z9I/cHkLbE1hGQ2HNN8R7KxUL55e uPNSYrEyfdHvvUsrtpEZrPAIEi4OXq3nqszCECtZE6z0jnMPSUpj0dkHBsZMnfyp J5QzFtiO0mU88zj3nkGJuu8yYd+t+8NhNHvvW5eFD/owHjur8ep+kFuT+OTHRzhf z5urE4pp/dLo0s+BVDhS =64yR -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Shorewall-users mailing list Shorewall-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/shorewall-users
