Re: Port Forwarding for L2TP/IPSec VPN Behind Verizon Actiontec MI424WR-GEN2 Rev. E v20.21.0.2

glad that worked, I'll have to play with my router again,  When I did it it came as a part of the preconfigured rules, and I Couldn't add the GRE (if I remember correctly, and sometimes I Don't) 

glad I saved that screen shot and glad it helped.