Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# Test that IPv4-over-IPv6 tunneling works.
3
4source lib.sh
5set -e
6
7setup_prepare() {
8 ip link add transport1 type veth peer name transport2
9
10 setup_ns ns1
11 ip link set transport1 netns $ns1
12 ip -n $ns1 address add 2001:db8::1/64 dev transport1 nodad
13 ip -n $ns1 address add 2001:db8::3/64 dev transport1 nodad
14 ip -n $ns1 link set transport1 up
15 ip -n $ns1 link add link transport1 name tunnel4 type ip6tnl mode ipip6 local 2001:db8::1 remote 2001:db8::2
16 ip -n $ns1 address add 172.0.0.1/32 peer 172.0.0.2/32 dev tunnel4
17 ip -n $ns1 link set tunnel4 up
18 ip -n $ns1 link add link transport1 name tunnel6 type ip6tnl mode ip6ip6 local 2001:db8::3 remote 2001:db8::4
19 ip -n $ns1 address add 2001:db8:6::1/64 dev tunnel6
20 ip -n $ns1 link set tunnel6 up
21
22 setup_ns ns2
23 ip link set transport2 netns $ns2
24 ip -n $ns2 address add 2001:db8::2/64 dev transport2 nodad
25 ip -n $ns2 address add 2001:db8::4/64 dev transport2 nodad
26 ip -n $ns2 link set transport2 up
27 ip -n $ns2 link add link transport2 name tunnel4 type ip6tnl mode ipip6 local 2001:db8::2 remote 2001:db8::1
28 ip -n $ns2 address add 172.0.0.2/32 peer 172.0.0.1/32 dev tunnel4
29 ip -n $ns2 link set tunnel4 up
30 ip -n $ns2 link add link transport2 name tunnel6 type ip6tnl mode ip6ip6 local 2001:db8::4 remote 2001:db8::3
31 ip -n $ns2 address add 2001:db8:6::2/64 dev tunnel6
32 ip -n $ns2 link set tunnel6 up
33}
34
35cleanup() {
36 cleanup_all_ns
37 # in case the namespaces haven't been set up yet
38 ip link delete transport1 &>/dev/null || true
39}
40
41trap cleanup EXIT
42setup_prepare
43ip netns exec $ns1 ping -q -W1 -c1 172.0.0.2 >/dev/null
44ip netns exec $ns1 ping -q -W1 -c1 2001:db8:6::2 >/dev/null