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-rw-r--r--doc/bird.sgml7
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml
index bd1ed7ed..01725128 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -776,7 +776,7 @@ agreement").
protocol packets are processed in the local TX queues. This option is
Linux specific. Default value is 7 (highest priority, privileged traffic).
- <tag><label id="proto-pass">password "<m/password/" [ { <m>password options</m> } ]</tag>
+ <tag><label id="proto-pass">password "<m/password/" | <m/hex_key/ [ { <m>password options</m> } ] </tag>
Specifies a password that can be used by the protocol as a shared secret
key. Password option can be used more times to specify more passwords.
If more passwords are specified, it is a protocol-dependent decision
@@ -784,6 +784,11 @@ agreement").
authentication is enabled, authentication can be enabled by separate,
protocol-dependent <cf/authentication/ option.
+ A password can also be specified as a hexadecimal key. <m/hex_key/ is a
+ sequence of hexadecimal digit pairs, optionally colon-separated. A key
+ specified this way must be at least 16 bytes (32 digits) long (although
+ specific algorithms can impose other restrictions).
+
This option is allowed in BFD, OSPF and RIP protocols. BGP has also
<cf/password/ option, but it is slightly different and described
separately.