gre: Support GRE over IPv6

[can-eth-gw-linux.git] / include / net / ipv6.h

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 01c34b363a34d1f7b126d55dffd8e170963528ed..6d01fb00ff2b613f7061f16e91c6890b2c927e61 100644 (file)
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -34,6 +34,7 @@
 #define NEXTHDR_IPV6           41      /* IPv6 in IPv6 */
 #define NEXTHDR_ROUTING                43      /* Routing header. */
 #define NEXTHDR_FRAGMENT       44      /* Fragmentation/reassembly header. */
+#define NEXTHDR_GRE            47      /* GRE header. */
 #define NEXTHDR_ESP            50      /* Encapsulating security payload. */
 #define NEXTHDR_AUTH           51      /* Authentication header. */
 #define NEXTHDR_ICMP           58      /* ICMP for IPv6. */