router id 192.0.2.2;
define rs_as = 999;

log "/var/log/bird.log" all;
log syslog all;
debug protocols { states, routes, filters, interfaces, events };

protocol device {};

ipv4 table master4 sorted;
ipv6 table master6 sorted;

filter from_client {
	bgp_ext_community.add((unknown 0x4300, 0, 1));
	accept;
}

protocol bgp AS10 {
	description "AS10";

	local as 999;
	neighbor 192.0.2.10 as 10;
	rs client;

	passive on;
	ttl security off;
	interpret communities off;

	ipv4 {
		secondary;
		import keep filtered on;
		import filter from_client;
		export all;
	};
}

protocol bgp AS20 {
	description "AS20";

	local as 999;
	neighbor 192.0.2.20 as 20;
	rs client;

	passive on;
	ttl security off;
	interpret communities off;

	ipv4 {
		secondary;
		import keep filtered on;
		import filter from_client;
		export all;
	};
}