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authorAndreas Rammhold <andreas@rammhold.de>2023-02-14 16:17:03 +0100
committerOndrej Zajicek <santiago@crfreenet.org>2023-02-14 16:17:03 +0100
commiteecc3f02e41bcb91d463c4c1189fd56bc44e6514 (patch)
tree26e6b2e113536c63c0f63bceeb107e1844ce4a15 /doc
parent0851fcde651301a886fefc574a4f739bf68119b9 (diff)
Babel: Implement IPv4 via IPv6 extension (RFC 9229)
The patch implements an IPv4 via IPv6 extension (RFC 9229) to the Babel routing protocol (RFC 8966) that allows annoncing routes to an IPv4 prefix with an IPv6 next hop, which makes it possible for IPv4 traffic to flow through interfaces that have not been assigned an IPv4 address. The implementation is compatible with the current Babeld version. Thanks to Toke Høiland-Jørgensen for early review on this work. Minor changes from committer.
Diffstat (limited to 'doc')
-rw-r--r--doc/bird.sgml6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml
index 001fcbd4..6f3fcfc6 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1929,6 +1929,7 @@ protocol babel [<name>] {
check link <switch>;
next hop ipv4 <address>;
next hop ipv6 <address>;
+ extended next hop <switch>;
authentication none|mac [permissive];
password "&lt;text&gt;";
password "&lt;text&gt;" {
@@ -2033,6 +2034,11 @@ protocol babel [<name>] {
source for Babel packets will be used. In normal operation, it should not
be necessary to set this option.
+ <tag><label id="babel-extended-next-hop">extended next hop <m/switch/</tag>
+ If enabled, BIRD will accept and emit IPv4 routes with an IPv6 next
+ hop when IPv4 addresses are absent from the interface as described in
+ <rfc id="9229">. Default: yes.
+
<tag><label id="babel-authentication">authentication none|mac [permissive]</tag>
Selects authentication method to be used. <cf/none/ means that packets
are not authenticated at all, <cf/mac/ means MAC authentication is