Not TCP protocol prerouting: in:lte1 out

[Larsa]

I glanced through your rules and there is plenty of room for optimization such as fast-track, the mangle chain etc. Have a look at these and feel free to come back with any questions:

• Accept established and related connections on Filter or Mangle?
• Recommended Firewall Filter & Raw rules
• How to really block invalid ICMP, TCP, UDP packets and others (ver. 2021)
• The DEFACTO DEFAULT FIREWALL Setup