1*56776695SJakub Kicinski#!/bin/bash 2*56776695SJakub Kicinski# SPDX-License-Identifier: GPL-2.0 3*56776695SJakub Kicinski 4*56776695SJakub KicinskiNS="ns-peer-$(mktemp -u XXXXXX)" 5*56776695SJakub Kicinski 6*56776695SJakub Kicinskiip netns add "${NS}" 7*56776695SJakub Kicinskiip -netns "${NS}" link set lo up 8*56776695SJakub Kicinskiip -netns "${NS}" route add default via 127.0.0.2 dev lo 9*56776695SJakub Kicinski 10*56776695SJakub Kicinskitc -n "${NS}" qdisc add dev lo ingress 11*56776695SJakub Kicinskitc -n "${NS}" filter add dev lo ingress prio 4 protocol ip \ 12*56776695SJakub Kicinski bpf object-file nat6to4.bpf.o section schedcls/egress4/snat4 direct-action 13*56776695SJakub Kicinski 14*56776695SJakub Kicinskiip netns exec "${NS}" \ 15*56776695SJakub Kicinski bash -c 'echo 012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789abc | socat - UDP4-DATAGRAM:224.1.0.1:6666,ip-multicast-loop=1' 16