diff options
Diffstat (limited to 'vnet/vnet/ip/ip4_forward.c')
| -rw-r--r-- | vnet/vnet/ip/ip4_forward.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/vnet/vnet/ip/ip4_forward.c b/vnet/vnet/ip/ip4_forward.c index 3075e0c3f73..08a1785aaa5 100644 --- a/vnet/vnet/ip/ip4_forward.c +++ b/vnet/vnet/ip/ip4_forward.c @@ -2373,7 +2373,12 @@ ip4_arp (vlib_main_t * vm, clib_memcpy (h0->ip4_over_ethernet[0].ethernet, hw_if0->hw_address, sizeof (h0->ip4_over_ethernet[0].ethernet)); - ip4_src_address_for_packet (im, p0, &h0->ip4_over_ethernet[0].ip4, sw_if_index0); + if (ip4_src_address_for_packet (im, p0, &h0->ip4_over_ethernet[0].ip4, sw_if_index0)) { + //No source address available + p0->error = node->errors[IP4_ARP_ERROR_NO_SOURCE_ADDRESS]; + vlib_buffer_free(vm, &bi0, 1); + continue; + } /* Copy in destination address we are requesting. */ h0->ip4_over_ethernet[1].ip4.data_u32 = ip0->dst_address.data_u32; @@ -2400,6 +2405,7 @@ static char * ip4_arp_error_strings[] = { [IP4_ARP_ERROR_NON_ARP_ADJ] = "ARPs to non-ARP adjacencies", [IP4_ARP_ERROR_REPLICATE_DROP] = "ARP replication completed", [IP4_ARP_ERROR_REPLICATE_FAIL] = "ARP replication failed", + [IP4_ARP_ERROR_NO_SOURCE_ADDRESS] = "no source address for ARP request", }; VLIB_REGISTER_NODE (ip4_arp_node) = { |