X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fip%2Fip4_packet.h;h=c41a8021d96526738b521ee561f35fc4ae4d7911;hb=c667ffd4af4bb0a0576ceefcc29e3bb086a823c2;hp=2f0c75e4924e9dcb6b40b78cc6283b421991a3ce;hpb=09fdf9d074430032c27aba9e12e52440c7de2006;p=vpp.git

diff --git a/src/vnet/ip/ip4_packet.h b/src/vnet/ip/ip4_packet.h
index 2f0c75e4924..c41a8021d96 100644
--- a/src/vnet/ip/ip4_packet.h
+++ b/src/vnet/ip/ip4_packet.h
@@ -193,6 +193,8 @@ typedef union
 #define IP4_VERSION_AND_HEADER_LENGTH_NO_OPTIONS \
   ((4 << 4) | (sizeof (ip4_header_t) / sizeof (u32)))
 
+#define IP4_ROUTER_ALERT_OPTION 20
+
 always_inline int
 ip4_get_fragment_offset (ip4_header_t * i)
 {