Block port 80 but allow IM
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Hi,
I'm trying to block web access for some LAN IP but I want to allow MSN messenger to continue to work. I have created a firewall rule in LAN tab (please see picture attached) but it also blocks msn messenger.any help will be appreciated.
Thanx.
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Do you have added allow rule for MSN Messenger TCP port (1863)?
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According to http://portforward.com/cports.htm
MSN uses
TCP UDP
1863, 6891-6900, 6901 1863, 5190, 6901I believe MSN uses 1863 for its main connection, the other ports listed maybe for voice clips, webcam, sharing files. Depending on your MSN client as well i have heard of it using 443 (SSL).
** Remember to set your allows at the TOP and the block * at the bottom, rules are processed from the top down, and if you do block all then allow 1863 it will ignore it.
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No I only blocked port 80 and assumed that all other ports would work as normal.
Thanx guys I will try allowing those ports to see if it will work and I will post back. -
yeah….this right...the standart port of windows live messenger is important.
i have block some others: icq , msn , skype
with firewall you can block icq and msn.
with make firewall rules for your specific programs and so the port 1863 are not allowed ;)when some messenger like skype use also port 80 or 443 (http, https) then you need a paketfilter like snort - to analyse one layer deeper, in the packages -
to identificate skype login or file-transfer or simething like that^^it works great for me!
No ChatTools :) -
it works when i allow all the listed ports there, not just one.
Thanx guys.