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Allowing incoming ICMP from only a specified source IP

In the predetermined snippet: netsh advfirewall firewall add rule name="ICMP Allow incoming V4 echo request" protocol=icmpv4:8,any dir=in action=allow What would I change exactly to allow ...
James Smith's user avatar
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To allow IPsec NAT-T traffic to pass through, why does the firewall still need to permit ESP when it already allows UDP 4500?

I established an IPsec VPN tunnel between two Juniper SRX routers across NAT, with the NAT being performed by the firewall (a Linux server). When attempting to configure the firewall rules to allow ...
phoebe61g's user avatar
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Is it possible to skip main mode for IPSec communication on Windows?

On Linux, after registered several SAs (Security Associations) between a pair of Linux host, I can create communication between those two Linux hosts, i.e, communicate with ESP packets. But on ...
gzh's user avatar
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Is Windows IPsec really needed when using a 3-rd party Firewall?

I have installed COMODO Firewall and I have some knowledge about internet security and i set up my firewall rules so my computer is protected enough (that really doesn't matter in current context). ...
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