Packet Testing Tool

Hi Guys,

does anyone know if there's a tool for probing / simulating ip-packets against the Firewall-Rules, e.g.:
simulate packet on internal if with source-ip, source-port für dest.-ip and dest.-port

test if the setted rules allow that packet or net and perhaps if , which DNAT-rule and network-security-rule allowes it?

this would make some things easier to test.

i still haven't a webinterface built-in-tool. does it perhaps exist?

if not would be nice to get it :-).

thanks a lot.

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