Differences

This shows you the differences between two versions of the page.

--- linux_router:nftables [2024-06-16 Sun wk24 11:58] – baumkp
+++ linux_router:nftables [2024-06-16 Sun wk24 12:07] (current) – [Router Configuration] baumkp
@@ Line 1: / Line 1: @@
 {{tag>linux router NFtables firewall}}
 =====NFTables Configuration=====
-====Router Configuration====
-A router performs the following key features:
-  - A gateway between different network areas
-    - Restrict network traffic
-    - Forward Network traffic
-    - Track network traffic, allows traffic incoming only if response to out going (one way traffic) This is primary firewall action! This is often confused with NAT, NAT is addtional to this!
-  - NAT (Network Address Translation) is basically mandatory for IPv4 due to limited address space and optional for IPv6
-    - NAT obfuscates Local IP addresses behind public addressable WAN IP address(es).  This obfuscation arguably provides some security. The key security is the restriction of gateway traffic into the LAN. See interesting notes on ths from [[https://www.grc.com/nat/nat.htm|GRC NAT Router Security Solutions]]
-Key networks services, such as DNS and DHCP are separate functions that a router may perform, although correct router setup is required to allow these services to function.
 The best reference for nftables is at the dedicated wiki [[https://wiki.nftables.org/|wiki nftables]]. Some other references I found [[https://gist.github.com/wolfhechel/db7ed3be31feb104752e|nftables router]]. The reference at stosb is good, but not for a router [[https://stosb.com/blog/explaining-my-configs-nftables/|Explaining My Configs: nftables]].