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advanced-firewall [2026/07/21 15:23] – pedroadvanced-firewall [2026/07/23 17:43] (current) – Condense, clarity for Enable TCP Syn Packets hogwild
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  \\ **Enable TCP SYN cookies:  **uses "SYN cookies" to protect the router from SYN Flood attacks.  \\ **Enable TCP SYN cookies:  **uses "SYN cookies" to protect the router from SYN Flood attacks.
  
-It encodes information from the SYN packet into the (SYN/ACK) response. It is a standard method for preventing SYN floods. However, it has limitations that may cause issues with some old TCP/IP stacks.+This uses a standard method for preventing SYN floods. It encodes information from the SYN packet into the (SYN/ACK) response. Its limitations may cause issues with some old TCP/IP stacks. \\ 
  
  \\  \\
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 **Allow DHCP Spoofing: **makes FreshTomato accept/process packets from DHCP servers with different IP than the one it advertises. **Allow DHCP Spoofing: **makes FreshTomato accept/process packets from DHCP servers with different IP than the one it advertises.
  
-Such behaviour is often categorized as a DHCP spoofing attack, but rarely, might be legitimate. Using this lowers security.\\  \\+Such behaviour is often categorized as a DHCP spoofing attack, but rarely, might be legitimate. Using this lowers security.
  
-**Smart MTU black hole detection:** this feature detects ICMP black holes and smartly tries to adjust the path MTU.+ \\ 
  
-For details on MTU and black holes, see this blog post: [[https://blog.cloudflare.com/path-mtu-discovery-in-practice/|The CloudFlare Blog: Path MTU Discovery in Practice]]+**Smart MTU black hole detection:** detects ICMP black holes and smartly tries to adjust the path MTU. 
 + 
 +For details on MTU and black holes, see this blog post: [[https://blog.cloudflare.com/path-mtu-discovery-in-practice/|The CloudFlare Blog: Path MTU Discovery in Practice]] \\  
 + 
 +\\ 
  
 **TCP MSS Clamping:** **TCP MSS Clamping:**
  
-TCP MSS Clamping adjusts the Maximum Segment Size of forwarded TCP connections on WAN and VPN interfaces to match the discovered path MTU.+This adjusts the Maximum Segment Size of forwarded TCP connections on WAN and VPN interfaces to match the discovered path MTU.
  
-This helps avoid MTU-related connection problems, especially on PPPoE links, VPN tunnels, IPv6 tunnels, or networks where ICMP fragmentation-needed messages are blocked.+This helps avoid MTU-related connection problems, especially on PPPoE links, VPN tunnels, IPv6 tunnels, or networks with blocked ICMP fragmentation-needed messages.
  
 Disabling this option reduces the number of firewall rules and may slightly improve performance on low-end routers, but can cause connection stalls or TLS handshake timeouts on links with reduced MTU. Disabling this option reduces the number of firewall rules and may slightly improve performance on low-end routers, but can cause connection stalls or TLS handshake timeouts on links with reduced MTU.
  
-Recommended setting: enabled, unless MTU/MSS is handled manually or the network is known to work reliably without MSS clamping.+Recommended setting: enabled, unless MTU/MSS is handled manually or the network works reliably without MSS clamping. 
  
 ===== NAT ===== ===== NAT =====
advanced-firewall.1784643812.txt.gz · Last modified: by pedro

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