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 an IGP routing table lookup for the IP address from
- <cf/bgp_next_hop/. Note that there is just one level of indirection in
- recursive mode - the route obtained by the lookup must not be recursive
- itself, to prevent mutually recursive routes.
+ <cf/bgp_next_hop/ is used and must be directly reachable. Recursive mode
+ means that the gateway is computed by an IGP routing table lookup for
+ the IP address from <cf/bgp_next_hop/. Note that there is just one level
+ of indirection in recursive mode - the route obtained by the lookup must
+ not be recursive itself, to prevent mutually recursive routes.
Recursive mode is the behavior specified by the BGP
standard. Direct mode is simpler, does not require any routes in a