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To improve my feeling of security I recently switched my windows 7 firewall to block all outbound connections. The only thing I can't seem to get to work is ping.exe. I tried by creating custom rules to allow everything through from cmd.exe to ping.exe (both versions in the system32 and SysWOW64) but no luck so far.

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1 Answer 1

up vote 2 down vote accepted

The option should be changed is protocol but not program. My steps here under:

  1. select all programs

  2. select ICMPv4 from protocol

  3. apply for any IP address.

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But that would essentially open up my entire outbound connection again. The main reason I set it up this way was to prevent unwanted programs from constantly contacting all kinds of services. –  RMK Nov 20 '12 at 11:57
No it will only open up ICMP protocol connections. Actually that protocol is almost same as Ping program, no another programs use it. –  Hans Chen Nov 20 '12 at 12:00
Learned something today. Didn't knew the exact specifications of that protocol. Thanks! –  RMK Nov 20 '12 at 12:08
You are welcome. Good to hear the solution works. –  Hans Chen Nov 20 '12 at 12:24

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