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-rw-r--r--src/plugins/vrrp/vrrp_packet.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/src/plugins/vrrp/vrrp_packet.c b/src/plugins/vrrp/vrrp_packet.c
index b470ddeba08..84bd3701edb 100644
--- a/src/plugins/vrrp/vrrp_packet.c
+++ b/src/plugins/vrrp/vrrp_packet.c
@@ -102,13 +102,20 @@ vrrp_adv_l3_build (vrrp_vr_t * vr, vlib_buffer_t * b,
if (!vrrp_vr_is_ipv6 (vr)) /* IPv4 */
{
ip4_header_t *ip4 = vlib_buffer_get_current (b);
+ ip4_address_t *src4;
clib_memset (ip4, 0, sizeof (*ip4));
ip4->ip_version_and_header_length = 0x45;
ip4->ttl = 255;
ip4->protocol = IP_PROTOCOL_VRRP;
clib_memcpy (&ip4->dst_address, &dst->ip4, sizeof (dst->ip4));
- fib_sas4_get (vr->config.sw_if_index, NULL, &ip4->src_address);
+
+ /* RFC 5798 Section 5.1.1.1 - Source Address "is the primary IPv4
+ * address of the interface the packet is being sent from". Assume
+ * this is the first address on the interface.
+ */
+ src4 = ip_interface_get_first_ip (vr->config.sw_if_index, 1);
+ ip4->src_address.as_u32 = src4->as_u32;
ip4->length = clib_host_to_net_u16 (sizeof (*ip4) +
vrrp_adv_payload_len (vr));
ip4->checksum = ip4_header_checksum (ip4);
@@ -536,10 +543,14 @@ vrrp_igmp_pkt_build (vrrp_vr_t * vr, vlib_buffer_t * b)
u8 *ip4_options;
igmp_membership_report_v3_t *report;
igmp_membership_group_v3_t *group;
+ ip4_address_t *src4;
ip4 = vlib_buffer_get_current (b);
clib_memcpy (ip4, &igmp_ip4_mcast, sizeof (*ip4));
- fib_sas4_get (vr->config.sw_if_index, NULL, &ip4->src_address);
+
+ /* Use the source address advertisements will use to join mcast group */
+ src4 = ip_interface_get_first_ip (vr->config.sw_if_index, 1);
+ ip4->src_address.as_u32 = src4->as_u32;
vlib_buffer_chain_increase_length (b, b, sizeof (*ip4));
vlib_buffer_advance (b, sizeof (*ip4));