When do arping, the interface need to be specified. Or we will get error: Interface "lo" is not ARPable. And the test failed. ]# ./arp_ndisc_untracked_subnets.sh TEST: test_arp: accept_arp=0 [ OK ] TEST: test_arp: accept_arp=1 [FAIL] TEST: test_arp: accept_arp=2 same_subnet=0 [ OK ] TEST: test_arp: accept_arp=2 same_subnet=1 [FAIL]
After fix: ]# ./arp_ndisc_untracked_subnets.sh TEST: test_arp: accept_arp=0 [ OK ] TEST: test_arp: accept_arp=1 [ OK ] TEST: test_arp: accept_arp=2 same_subnet=0 [ OK ] TEST: test_arp: accept_arp=2 same_subnet=1 [ OK ]
Fixes: 0ea7b0a454ca ("selftests: net: arp_ndisc_untracked_subnets: test for arp_accept and accept_untracked_na") Signed-off-by: Hangbin Liu liuhangbin@gmail.com --- tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh index c899b446acb6..327427ec10f5 100755 --- a/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh +++ b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh @@ -150,7 +150,7 @@ arp_test_gratuitous() { fi # Supply arp_accept option to set up which sets it in sysctl setup ${arp_accept} - ip netns exec ${HOST_NS} arping -A -U ${HOST_ADDR} -c1 2>&1 >/dev/null + ip netns exec ${HOST_NS} arping -A -I ${HOST_INTF} -U ${HOST_ADDR} -c1 2>&1 >/dev/null
if verify_arp $1 $2; then printf " TEST: %-60s [ OK ]\n" "${test_msg[*]}"