Symbol: IP6_TUN_FWD
tools/testing/selftests/bpf/prog_tests/tc_redirect.c
1231
SYS(fail, "ip -netns " NS_FWD " addr add dev tun_fwd " IP6_TUN_FWD "/64 nodad");
tools/testing/selftests/bpf/prog_tests/tc_redirect.c
1238
SYS(fail, "ip -netns " NS_SRC " route add " IP6_DST "/128 via " IP6_TUN_FWD