Seeking help for Redsocks setup

alberto · December 14, 2020, 10:34pm

Hi,

I have a GL-MT300N-V2 and I would like to create a setup using Redsocks to route all traffic from the LAN port to a SOCKS5 proxy server situated in the WAN. I am not very familiar with iptables and I am having troubles finding the right configuration. Any help would be very appreciated.

TIA,

alzhao · December 15, 2020, 3:38pm

I don’t have experience on this. Can you do according to

gist.github.com

https://gist.github.com/afriza/1097210

redsocks.conf

base {
        // debug: connection progress & client list on SIGUSR1
        log_debug = on;

        // info: start and end of client session
        log_info = on;

        /* possible `log' values are:
         *   stderr
         *   file:/path/to/file

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run.sh

# at terminal 1
ssh -D1080 username@server -p443

# at terminal 2
./redsocks -c redsocks.conf
# no log texts appear after running redsocks!!

# at terminal 3
. setup-iptables.sh
# all runs fine

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setup-iptables.sh

# Create new chain                                                                                                                                           
iptables -t nat -X REDSOCKS                                                                                                                                  
iptables -t nat -N REDSOCKS                                                                                                                                  
                                                                                                                                                             
# Ignore LANs and some other reserved addresses.                                                                                                             
iptables -t nat -A REDSOCKS -d 0.0.0.0/8 -j RETURN                                                                                                           
iptables -t nat -A REDSOCKS -d 10.0.0.0/8 -j RETURN                                                                                                          
iptables -t nat -A REDSOCKS -d 10.10.1.0/22 -j RETURN                                                                                                        
iptables -t nat -A REDSOCKS -d 127.0.0.0/8 -j RETURN                                                                                                         
iptables -t nat -A REDSOCKS -d 169.254.0.0/16 -j RETURN

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alberto · December 15, 2020, 4:00pm

Hi alzhao,
thanks a lot for the pointer. I tried the configuration on that page, but somehow it doesn’t work on my setup. I’m pretty sure there must be something wrong I’m doing or there’s something different in my setup that is preventing it to work, because the information on the link you posted are very sensible.
Alberto