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-rw-r--r--doc/bird.sgml15
1 files changed, 11 insertions, 4 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml
index faf64af..a760b9d 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -94,9 +94,16 @@ protocols to be incorporated easily. Among other features, BIRD supports:
Czech Republic as a student project. It can be freely distributed under the terms of the GNU General
Public License.
-<p>BIRD has been designed to work on all UNIX-like systems. It has been developed and
-tested under Linux 2.0 to 2.6, and then ported to FreeBSD, NetBSD and OpenBSD, porting to other
-systems (even non-UNIX ones) should be relatively easy due to its highly modular architecture.
+<p>BIRD has been designed to work on all UNIX-like systems. It has
+been developed and tested under Linux 2.0 to 2.6, and then ported to
+FreeBSD, NetBSD and OpenBSD, porting to other systems (even non-UNIX
+ones) should be relatively easy due to its highly modular
+architecture.
+
+<p>BIRD supports either IPv4 or IPv6 protocol, but have to be compiled
+separately for each one. Therefore, a dualstack router would run two
+instances of BIRD (one for IPv4 and one for IPv6), with completely
+separate setups (configuration files, tools ...).
<sect>Installing BIRD
@@ -2115,5 +2122,5 @@ LocalWords: OS'es AS's multicast nolisten misconfigured UID blackhole MRTD MTU
LocalWords: uninstalls ethernets IP binutils ANYCAST anycast dest RTD ICMP rfc
LocalWords: compat multicasts nonbroadcast pointopoint loopback sym stats
LocalWords: Perl SIGHUP dd mm yy HH MM SS EXT IA UNICAST multihop Discriminator txt
-LocalWords: proto wildcard
+LocalWords: proto wildcard Ondrej Filip
-->