I'm trying to recreate this iptables setup (from https://github.com/darkk/redsocks) with pf:
iptables -t nat -A REDSOCKS -p tcp -d 10.0.0.0/8 -j REDIRECT --to-ports 12345 iptables -t nat -A OUTPUT -p tcp -j REDSOCKS
I want to redirect all connections going to 10.0.0.0/8 (no matter what port) to the local port 12345. In linux this works great with the above specified rules. Now I'm trying to recreate it on Mac OS X. Currently nothing I have tried works e.g.
rdr inet proto tcp from any to 10.0.0.0/8 port 0:65535 -> 127.0.0.1 port 12345
I have set sysctl net.inet.ip.forwarding=1
I'm not sure if even the rdr rule is equivalent to the iptables nat redirect. Redsocks requires the connection to keep the destination ip/port for correct forwarding through the proxy. So I guess the destination in the packages should not be changed/rewritten to 127.0.0.1:12345.