#tun #tap #kernel #wrap #device #tool #run #ingress

app burritun

Wrap a tun device in a tap device

2 releases

Uses old Rust 2015

0.1.1 Jul 10, 2018
0.1.0 May 24, 2018

GPL-3.0 license

260KB
162 lines

burritun

Wrap a tun interface in a tap interface. This is useful if you need to run a tool on a tun device that depends on a layer 2 raw socket, but doesn't actually need layer 2 access. The ethernet header is transparently stripped for egress and added for ingress. It also emulates arp to ensure the kernel can use the interface correctly.

burrito logo

Usage

# wrap tun0 into burritun0
burritun tun0 burritun0 &
# remove ip from tun device
ip a del  192.0.2.4/24 dev tun0
# add ip to tap device
ip a add 192.0.2.4/24 dev burritun0
# resume burritun
fg

License

GPLv3+

Dependencies

~8.5MB
~182K SLoC