Analysis of existing firewall and shaper scripts

TBD: I have examples of many of these types of shapers that I plan to go into more detail with shortly.

Openwrt firewall + QoS rules

Openwrt ties it’s firewalling and QoS code closely together, using a combination of ‘qos-scripts’ and firewall rules in a somewhat easy to read format in /etc/config/qos and /etc/config/firewall, generating complex rules as a result. It also defaults to TCP Westwood+ which has interesting interactions with other TCP traffic when a proxy is used.

Gargoyle

Gargoyle (A fork of openwrt)

ufw

Wondershaper

Wondershaper’s big claim to fame was it’s simplicity. It pioneered ACK prioritization for ssh traffic, and did its work in only 4 TC rules.

Nanog

Airmax

Used by ubiquity in their line of high performance wireless routers, this consists of a lot of very hard to parse tc rules that work magic for fairness across a wireless network

Adsl-Shaper

Shorewall

Linux voip server example

Linux servers

Linux desktops