Is redsocks able to redirect udp traffic by tproxy (not only for dns )?

[pizeroTT]

I have seen 7783402
for redirecting udp traffic, but that not work for me?

my iptables rules:

ip route add local 0.0.0.0/0 dev lo table 100
ip rule add fwmark 1 table 100
iptables -t mangle -N REDUDP
iptables -t mangle -A REDUDP -d 0.0.0.0/8 -j RETURN
iptables -t mangle -A REDUDP -d 10.0.0.0/8 -j RETURN
iptables -t mangle -A REDUDP -d 100.64.0.0/10 -j RETURN
iptables -t mangle -A REDUDP -d 127.0.0.0/8 -j RETURN
iptables -t mangle -A REDUDP -d 169.254.0.0/16 -j RETURN
iptables -t mangle -A REDUDP -d 172.16.0.0/12 -j RETURN
iptables -t mangle -A REDUDP -d 198.18.0.0/15 -j RETURN
iptables -t mangle -A REDUDP -d 224.0.0.0/4 -j RETURN
iptables -t mangle -A REDUDP -d 240.0.0.0/4 -j RETURN
iptables -t mangle -A REDUDP -p udp -j TPROXY --on-port 10053 --tproxy-mark 0x1/0x1
iptables -t mangle -A REDUDP -p tcp -j TPROXY --on-port 12345 --tproxy-mark 0x1/0x1
iptables -t mangle -A PREROUTING -p udp -j REDUDP

[ge9]

Yes, it worked for me.
Unless more tricky iptables settings are applied, PREROUTING is not applied to packets generated in the machine where tproxy is running.

[sunShuShu]

It works for me too, but I added "iptables -t mangle -A REDUDP -d 192.168.0.0/16 -j RETURN" before TPROXY rules and added the "--on-ip 127.0.0.1" to TRPOXY rules ( my local_ip of redudp in config file is also 127.0.0.1 ).

[iopq]

Yes, it worked for me. Unless more tricky iptables settings are applied, PREROUTING is not applied to packets generated in the machine where tproxy is running.

how would you do it then if tproxy is running locally

[ge9]

There is a good document in the Hysteria project.
https://v2.hysteria.network/docs/advanced/TPROXY/