Jim Ford wrote:
Further to my problem:
I've now found that the packets being rejected by the internal network
interface on my firewall, are originating from strange ports owned by
the Azureus bittorrent client I'm running. The ports in use are as follows:
Ports owned by the Azureus process (as determined by fport):
TCP:1075,1076,1077,1078,1079,1080,1577,1884,1885,1937,1938,1938,1942,1943,1944,
2129,2172,2173,3068,3069,4418,4824,4825,6880,45100
UDP:123,137,138,1025,1071,4453,4454,4455,4500,4670
(I've not listed the port I've allocated to Azureus.)
A lot of these are mighty suspicious, but fortunately none of them are
reaching the outside world.
I've still no idea what's happening!
Jim Ford
Any underlying problem here is an Azuerus issue, not a LEAF issue, so
you'd do better to look to the Azuerus (or perhaps the BitTorrent)
community for help. However, based on your prior report, I don't think
you should assume that "none of them are reaching the outside world" ...
not without checking, anyway.
Shorewall on LEAF blocks traffic to the external IP address from LAN
sources, but it doesn't in general block traffic from arbitrary ports on
the LAN to other off-LAN IP addresses (it can't, since that is by and
large what your *normal* Internet traffic is). Shorewall doesn't log
this ALLOWed traffic, so you might want to find out whether any of it is
going out (say by using Ethereal of your LAN host is Windows, or (for
example) tcpdump if it is Linux).
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