mrash / fwknop

Single Packet Authorization > Port Knocking
http://www.cipherdyne.org/fwknop/
GNU General Public License v2.0
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Cell network natting breaks function of fwknop, customize rules? #367

Open mgaulton opened 5 months ago

mgaulton commented 5 months ago

Hi There, I'm trying to get this configured specifically for ssh right now and running into a weird issue. I have a fairly indepth firewall and discovered that no packets make it to the FWKNPT_INPUT chain after auth is successful and the rule is created. Watching logs while no firewall shows that the SPA comes from one IP address, the ssh session a different IP in the same /16 network as far as I can tell. Wondering if there is a way to customize the created rule so that it allows the /16 temporarily or another mechanism to handle this scenario. Thank you!