Enable ICMP Redirect based route change in Windows

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Enable ICMP redirect based route change in Windows

By default Windows allows ICMP redirect based route changes.

Refer:

• https://social.technet.microsoft.com/Forums/windowsserver/en-US/c2443864-e097-4576-bc72-6de0b7028fee/forum-faq-dynamic-host-routes-are-added-automatically-to-the-local-routing-table-for-computers-in-a?forum=winserverPN

In registry 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters' for 'EnableICMPRedirect' Value is 1 for enabled, 0 for disabled

However default Windows firewall might drop incoming icmpv4 redirect packets.

Refer:

• https://community.spiceworks.com/topic/292861-icmp-redirects

Check for "Networking - Redirect (ICMPv4-In)" in "Inbound Rules" of Windows Firewall using "Windows Firewall with Advanced Security".