If anyone is interested in my particularly strange use case, this seems to work: $ sudo ifconfig en0 alias 192.168.2.210 255.255.255.0 $ sudo ifconfig

If anyone is interested in my particularly strange use case, this seems to work: $ sudo ifconfig en0 alias 192.168.2.210 255.255.255.0 $ sudo ifconfig en0 alias 192.168.2.211 255.255.255.0 $ sudo ifconfig en0 alias 192.168.2.212 255.255.255.0 $ dispatch start SOCKS5 server started on localhost:1080 Dispatching to addresses 192.168.2.28@1, 192.168.2.210@1, 192.168.2.211@1, 192.168.2.213@1 Also the link I mentioned is different from what other people have mentioned in this thread. It's not interface bonding or TCP multipath. It is actually similar to dispatch-proxy, it balances TCP connections across interfaces as far as I can tell.