X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/49bfe6a28c92c377a3c5227b0b6bd45053c18cef..844abf94571ffdd3e113c518947073ff5375d748:/svc/tripe-ifup.in

diff --git a/svc/tripe-ifup.in b/svc/tripe-ifup.in
index e92c0fd5..032142c5 100644
--- a/svc/tripe-ifup.in
+++ b/svc/tripe-ifup.in
@@ -108,6 +108,13 @@ haveaddr6=nil
 set -- $l6addr
 case $have6,$# in
   t,[1-9]*)
+
+    ## If we're configured to set IPv6 addresses then we should ensure that
+    ## they're going to work, even if the default setting for new interfaces
+    ## is to disable IPv6.
+    try sysctl -q net.ipv6.conf."$ifname".disable_ipv6=0
+
+    ## Now add the source and destination addresses.
     for a in "$@"; do
       try ip addr add "$a" dev "$ifname"
       haveaddr6=t