On 1/7/26 8:38 AM, Fernando Fernandez Mancera wrote:
> +icmpv6_to_vrf_based_local_address()
> +{
> + local rc
> + local lldummy
> +
> + echo
> + echo "ICMPv6 to VRF based local address"
> +
> + setup
> +
> + lldummy=$(get_linklocal dummy0)
> +
> + if [ -z "$lldummy" ]; then
> + echo "Failed to get link local address for dummy0"
> + return 1
> + fi
> +
> + run_cmd "$NS_EXEC sysctl -w net.ipv6.conf.all.keep_addr_on_down=1"
> +
> + # create VRF and setup
> + run_cmd "$IP link add vrf0 type vrf table 10"
> + run_cmd "$IP link set vrf0 up"
> + run_cmd "$IP link set dummy0 master vrf0"
run_cmd "$IP -6 addr add ::1 dev vrf0 nodad"
makes the VRF device the loopback.
> +
> + # route to reach 2001:db8::1/128 on VRF device and back to ::1
> + run_cmd "$IP -6 route add 2001:db8:1::1/64 dev vrf0"
> + run_cmd "$IP -6 route add ::1/128 dev vrf0 table 10"
and then this route add should not be needed. This is how fcnal-test.sh
works.
> +
> + # ping6 to link local address
> + run_cmd "$NS_EXEC ${ping6} -c 3 $lldummy%dummy0"
> + log_test $? 0 "Ping to link local address on VRF context"
> +
> + # ping6 to link local address from localhost (::1)
> + run_cmd "$NS_EXEC ${ping6} -c 3 -I ::1 $lldummy%dummy0"
-I vrf0 should be needed for all VRF tests. I suspect your current
passing tests are because you have a single setup step and then run
non-VRF test followed by VRF test. Really you need to do the setup,
run_test, cleanup for each test.
> + log_test $? 0 "Ping to link local address from ::1 on VRF context"
> +
> + # ping6 to local address
> + run_cmd "$NS_EXEC ${ping6} -c 3 2001:db8:1::1"
> + log_test $? 0 "Ping to local address on VRF context"
> +
> + # ping6 to local address from localhost (::1)
> + run_cmd "$NS_EXEC ${ping6} -c 3 -I ::1 2001:db8:1::1"
> + log_test $? 0 "Ping to local address from ::1 on VRF context"
> +}
> +
