nat6to4.sh 598 B

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