[IPCop-user] timeout on dialup not working and mdbs_daemon

[chris e. <ce...@fr...>]

Hello

I have a  problem with  dialup timeouts.  Although I've set it to 2
minutes it can go on indefinitely.
Originally I had thought that that this was due to netbios calls to the
network so I added:

ipchains -A input -p udp -s 192.168.0.2 137:139 -j REJECT
ipchains -A input -p udp -d 0.0.0.0 137:139 -j REJECT

to /etc/rc.d/rc.firewall.up which stopped my windows box from starting
and keeping up connections but once the connection
is up it still stays up much longer than it should following any
activity from my side.

Using tcpdump on my ppp0 interface (red - where my adsl modem is found)
is see this randomly:

8:12:17.702473 81.65.28.13.3639 > my.local.ip.address.2178: S
29615547:29615547(0) win 8192 <mss 1412,nop,nop,sackOK> (DF)
18:12:17.702687 my.local.ip.address.2178 > 81.65.28.13.3639: R 0:0(0)
ack 29615548 win 0

(local ip address has be changed to protect the innocent ...)

I'm sorry that my tcp/ip culture is a bit lacking but it seems that
these syns from outer space are the culprit.  They are regularly sent
to me  on ports 4166, 4662 etc.   Is there anything I can do to counter
them?  Can anyone tell me what they are?

While I'm at it I also see (on the green interface) a lot of activity
concerning mdbs_daemon (port 800).  Using "netstat --inet -ap" I see
them attributed to my Opera
browser.   I've looked high and low but can't find any info on the
mdbs_daemon.  What is it?

Any help on these matters would be greatly appreciated.