icmptx
ICMPTX is a program that allows a user with root privledges to create a
3 Alternatives To icmptx
DNScapy
DNScapy is a DNS tunneling tool. The code is very light and written in Python.
Iodine
iodine is a free (ISC licensed) tunnel application to forward IPv4 traffic through DNS servers (IP over DNS). Works on Linux, FreeBSD, NetBSD, OpenBSD and Mac OS X.
OpenDNS
OpenDNS provides faster and safer Internet access for your home or Business.