X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/baa631c5498eed5008c532e07ed5a4b2ff993048..85b239ad6c917a76b8ab81fc182c03d28255bdcb:/svc/tripe-ifup.in

diff --git a/svc/tripe-ifup.in b/svc/tripe-ifup.in
index 5f70ca1b..79f5d469 100644
--- a/svc/tripe-ifup.in
+++ b/svc/tripe-ifup.in
@@ -118,7 +118,7 @@ case $haveaddr4,$haveaddr6 in
 	mtu=$P_MTU;;
       *)
 	pathmtu=$(pathmtu "$addr")
-	mtu=$(expr "$pathmtu" - 33 - $A_CIPHER_BLKSZ - $A_MAC_TAGSZ)
+	mtu=$(expr "$pathmtu" - 29 - $A_BULK_OVERHEAD)
 	;;
     esac
     ip link set dev "$ifname" up mtu "$mtu"