Attached hosts
allow this config to function:
set int ip address loop0 169.254.1.1/32 (the default GW address for attached hosts)
set int unnumbered af_packet0 use loop0 ('enable' IP on the host interface)
ip route add 192.168.1.1/32 via af_packet0 (where to find the host)
repeat for each host and host interface.
Inter-host communication is throught the /32 routes.
To allow this:
1 - attached host routes have the ATTACHED flag set, so the ARP code accepts then as legitimate sources
2 - unnumbered interfaces inherit the source address from the IP interface
Change-Id: Ib66c5f0e848c528f79372813adc3a0c11b50717f
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/interface_cli.c b/src/vnet/interface_cli.c
index bd715e4..ec8530d 100644
--- a/src/vnet/interface_cli.c
+++ b/src/vnet/interface_cli.c
@@ -864,6 +864,10 @@
si->unnumbered_sw_if_index = (u32) ~ 0;
ip4_sw_interface_enable_disable (unnumbered_sw_if_index, 0);
ip6_sw_interface_enable_disable (unnumbered_sw_if_index, 0);
+ ip4_main.lookup_main.if_address_pool_index_by_sw_if_index
+ [unnumbered_sw_if_index] = ~0;
+ ip6_main.lookup_main.if_address_pool_index_by_sw_if_index
+ [unnumbered_sw_if_index] = ~0;
}
else if (is_set)
{
@@ -871,6 +875,14 @@
si->unnumbered_sw_if_index = inherit_from_sw_if_index;
ip4_sw_interface_enable_disable (unnumbered_sw_if_index, 1);
ip6_sw_interface_enable_disable (unnumbered_sw_if_index, 1);
+ ip4_main.lookup_main.if_address_pool_index_by_sw_if_index
+ [unnumbered_sw_if_index] =
+ ip4_main.lookup_main.if_address_pool_index_by_sw_if_index
+ [inherit_from_sw_if_index];
+ ip6_main.lookup_main.if_address_pool_index_by_sw_if_index
+ [unnumbered_sw_if_index] =
+ ip6_main.lookup_main.if_address_pool_index_by_sw_if_index
+ [inherit_from_sw_if_index];
}
return 0;