uml switch2 instructions

gcc -d -Wall -o uml_switch2 uml_switch2.c should compile the program. install uml_switch2 /usr/local/bin could be a possible command to install the executable.

My config-file looks similar to:

logfile /var/log/uml/uml_switch2.log
pidfile /var/run/uml_switch2.pid
port 334
remote firewall.domain.tld
socket /tmp/uml.ctl
sockowner uml
fork

And I start the program als root-user with the following command: uml_switch2 /etc/uml/uml_switch2.conf.

On the firewall is also an instance of uml_switch2 running, this time with a configuration file similar to

pidfile /var/run/uml_switch2.pid
logfile /var/log/uml/uml_switch2.log
tap tap1
tapupcmd "ifup tap1"
tapdncmd "ifdown tap1"
port 334
remote inside.domain.tld
fork

You might even use the uml_switch2 program to create an unencrypted, uncompressed (and useless) ip-tunnel between two hosts.