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-rw-r--r--doc/ipv6.texi3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/ipv6.texi b/doc/ipv6.texi
index 5be2babed4..e08759ab03 100644
--- a/doc/ipv6.texi
+++ b/doc/ipv6.texi
@@ -8,6 +8,9 @@ automatic address configuration via a feature called @code{address
auto configuration}. To do it, the router must send router advertisement
messages to the all nodes that exist on the network.
+Previous versions of Quagga could be built without IPv6 support. This is
+no longer possible.
+
@menu
* Router Advertisement::
@end menu