make -C tools/testing/selftests TARGETS="net/forwarding" TEST_PROGS=routerr.sh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-4/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
make[1]: Entering directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
TAP version 13
1..1
# overriding timeout to 21600
# selftests: net/forwarding: router.sh

DETECTED CRASH, lowering timeout
# 11.37 [+11.37] TEST: ping                                                          [ OK ]
# 12.65 [+1.28] TEST: ping6                                                         [ OK ]
# 13.51 [+0.86] TEST: Source IP in class E                                          [ OK ]
# 14.26 [+0.75] TEST: Multicast MAC mismatch: IPv4                                  [ OK ]
# 14.87 [+0.61] TEST: Multicast MAC mismatch: IPv6                                  [ OK ]
# 15.67 [+0.80] TEST: Source IP is equal to destination IP: IPv4                    [ OK ]
# 16.32 [+0.65] TEST: Source IP is equal to destination IP: IPv6                    [ OK ]
# 17.08 [+0.76] TEST: IPv4 destination IP is link-local                             [ OK ]
ok 1 selftests: net/forwarding: router.sh
make[1]: Leaving directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
make: Leaving directory '/home/virtme/testing-4/tools/testing/selftests'
xx__-> echo $?
0
xx__->