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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/bird.sgml | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 82ff630f..cd6d4138 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -1028,6 +1028,24 @@ for each neighbor using the following configuration parameters: is configured as a route server (option <cf/rs client/), in that case default is <cf/drop/, because route servers usually does not forward packets ifselves. + + <tag>gateway direct|recursive</tag>For received routes, their + <cf/gw/ (immediate next hop) attribute is computed from + received <cf/bgp_next_hop/ attribute. This option specifies + how it is computed. Direct mode means that the IP address from + <cf/bgp_next_hop/ is used if it is directly reachable, + otherwise the neighbor IP address is used. Recursive mode + means that the gateway is computed by a IGP routing table + lookup for the IP address from <cf/bgp_next_hop/. Recursive + mode is the behavior specified by the BGP standard. Direct + mode is simpler, does not require any routes in a routing + table, and was used in older versions of BIRD, but does not + handle well nontrivial iBGP setups and multihop. Default: + <cf/direct/ for singlehop eBGP, <cf/recursive/ otherwise. + + <tag>igp table <m/name/</tag> Specifies a table that is used + in a recursive gateway mode for computing <cf/gw/ attributes. + Default: the same as the table BGP is connected to. <tag>password <m/string/</tag> Use this password for MD5 authentication of BGP sessions. Default: no authentication. Password has to be set by |