Discussion:
Block all outbound traffic except tcp port 22
(too old to reply)
c***@gmail.com
2008-01-15 19:46:24 UTC
Permalink
would like to block all outbound traffic, any protocol, but allow
traffic on port 22. using "All IP Traffic" filter with "Block" action
accomplishes the task of blocking all outbound traffic. if i add an
additional filter to permit tcp traffic on port 22, the traffic is
blocked. if i uncheck "All IP Traffic" filter and add a filter list
specifically for tcp outbound traffic with the same block action it
works. all outbound tcp traffic is blocked with exception of port
22. if i add an additional filter to block all outbound UDP traffic,
the port 22 exception ceases to function. how can i block all
outbound traffic any protocol and allow an exception for port 22?
Jason Popp
2008-02-12 03:42:47 UTC
Permalink
It's likely the format of the rules you are using and the relative filter
weighting that results.
http://technet.microsoft.com/en-us/library/bb877982.aspx

If you use a Generic Block say in the format Any to Any, Block. You need to
ensure the permit is more specific, so use something similar to Me < - >
Any, TCP/22, Allow

Jason
Post by c***@gmail.com
would like to block all outbound traffic, any protocol, but allow
traffic on port 22. using "All IP Traffic" filter with "Block" action
accomplishes the task of blocking all outbound traffic. if i add an
additional filter to permit tcp traffic on port 22, the traffic is
blocked. if i uncheck "All IP Traffic" filter and add a filter list
specifically for tcp outbound traffic with the same block action it
works. all outbound tcp traffic is blocked with exception of port
22. if i add an additional filter to block all outbound UDP traffic,
the port 22 exception ceases to function. how can i block all
outbound traffic any protocol and allow an exception for port 22?
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