[Bug 12302] Lord of the Rings: Shadows of Angmar unplayable due to high lag

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=12302





--- Comment #50 from Daniel Santos <daniel.santos at pobox.com>  2008-07-08 08:21:49 ---
ok, ixnay on that last patch, there are now thousands of non-identical packets
getting through.  I may be passing the number of bytes back incorrectly causing
it to try again in a different way.  Will have to investigate further.

(In reply to comment #48)
> This could work. I guess it would be easiest to write this as a netfilter match
> module. For example:
> iptables -A FORWARD -s 1.2.3.4 -p udp -m multiport --dports x,y,z -m length
> --length 1:100 -m filterdupes -j DROP

Ok, so I'm reading up a little bit on doing this.  I like this solution WAY
better because it keeps the wine layer squeaky clean, even though it will
result in significantly greater CPU usage (doesn't mean the CPU usage its self
will be significant though).  It it turns out that the spamming is also causes
CPU problems, then we can look more seriously at the wine-layer hack.

So if I'm understanding this correctly, we would just write a filterdupes
netfilter module, preferably that accepts some parameters and add a rule that
looks something like this:

iptables -A FORWARD -p udp -m multiport --dports 9002,9008 -m length --length
1:100 -m filterdupes --cache-duration 85 --dupes-allowed 2 -j DROP

Is the source address really needed?  I would pin down the destination
addresses, but that changes for each server and possibly even for the same
"server", since they may have (one would hope) a cluster of actual machines. 
Also restricting to UDP and ports 9002 & 9008 should keep it from interfering
with other apps.


-- 
Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email
Do not reply to this email, post in Bugzilla using the
above URL to reply.
------- You are receiving this mail because: -------
You are watching all bug changes.