Use an and kernel patches. Example build environment:
The RTL8196E chip, when paired with OpenWRT firmware, offers a powerful combination for customizing and enhancing your router's capabilities. With its robust architecture, customizable features, and community-driven support, this pairing is ideal for developers, enthusiasts, and organizations looking to create tailored networking solutions. By exploring the possibilities of RTL8196E with OpenWRT, you can unlock new features, improve performance, and take your networking experience to the next level. rtl8196e openwrt
opkg install iptables iptables -A input_wan -p tcp --dport 22 -j ACCEPT Use an and kernel patches