Dear Bird Users. Just wanted to know if that is a working bird config and 1 more question. Scenario: I have an AS and 2x /24 (lets say 193.1.1.1 and 194.1.1.1) networks assigned to my as. Furthermore I have 2 uplink providers. AS1 and AS2. I want most of the traffic to go thru AS1. AS2 should act as backup uplink. My as is defined here as AS0. ---begin--- router id 193.1.1.1; log "/var/pfad/bird.log protocol device { scan time 60;} protocol static static_bgp { import all; route 193.1.1.0/24 unreachable; route 194.1.1.0/24 unreachable; protocol kernel{ import all; export all; } ###################### # FILERS DEF # ###################### filter bgp_IN { if (net ~ [ 169.254.0.0/16+, 172.16.0.0/12+, 192.168.0.0/16+, 10.0.0.0/8+, 224.0.0.0/4+, 240.0.0.0/4+, 0.0.0.0/32-, 0.0.0.0/0{31,32}, 0.0.0.0/0{0,7} ];) then reject; accept; } filter bgp_OUT { if (net ~ [193.1.1.0/24, 194.1.1.0/24]) then accept; else reject; } filter bgp_OUT_P { if (net ~ [193.1.1.0/24, 194.1.1.0/24]) then { bgp_path.prepend(0); ---> My AS# bgp_path.prepend(0); bgp_path.prepend(0); accept; } else reject; } ###################### # / FILERS DEF # ###################### ###################### # BGP CONF # ###################### protocol bgp THRU_AS1 { local as 0; source adress 193.1.1.1; neighbor 1.1.1.2 as 1; default bgp_local_pref 100; path metric 0; default bgp_med 1; import filter bgp_IN; export filter bgp_OUT; } protocol bgp THRU_AS2 { local as 0; source adress 193.1.1.1; neighbour 2.2.2.3 as 2; default bgp_local_pref 200; path metric 0; default bgp_med 1; import filter bgp_IN; export filter bgp_OUT_P; } ---END of conf.--- Would this work? Can someone show me how I could act as uplink for someone else? What would I need to add in the config so AS7 is connected to my as and wants an uplink from me with full routing table ? Cheers in advanced, Victor