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-rw-r--r--include/linux/if_arp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h
index f0e69c6e8208..9adcc29f084a 100644
--- a/include/linux/if_arp.h
+++ b/include/linux/if_arp.h
@@ -92,6 +92,7 @@
#define ARPHRD_PHONET 820 /* PhoNet media type */
#define ARPHRD_PHONET_PIPE 821 /* PhoNet pipe header */
#define ARPHRD_CAIF 822 /* CAIF media type */
+#define ARPHRD_IP6GRE 823 /* GRE over IPv6 */
#define ARPHRD_VOID 0xFFFF /* Void type, nothing is known */
#define ARPHRD_NONE 0xFFFE /* zero header length */