bird+juniper BGP RTBH

bird实例

log syslog all;
debug protocols off;
debug commands 0;

router id 1.1.1.1;

protocol static rtbh {
	route 99.99.99.99/32 blackhole;
	route 88.88.88.88/32 blackhole;
}

filter export_rtbh_out {
	# Limit to static routes
	if (proto = "rtbh") then
	{
		# Limit to /32 host routes (for now)
		if net.len = 32 then
		{
			bgp_community.add((65001,9999));
			bgp_next_hop = 192.0.2.1;
			accept;
		}
	}
	reject;
}

protocol bgp ER3 {
	description "iBGP to Edge Router 3 for RTBH";
	debug { states, events };
	local 1.1.1.1 as 65001;
	neighbor 3.3.3.3 as 65001;
	import none;
	export filter export_rtbh_out;
}
protocol bgp ER4 {
	description "iBGP to Edge Router 4 for RTBH";
	debug { states, events };
	local 1.1.1.1 as 65001;
	neighbor 4.4.4.4 as 65001;
	import none;
	export filter export_rtbh_out;
}

JUNOS 配置实例

routing-options {
	static {
		route 192.0.2.1/32 discard;
	}
}

protocols {
	bgp {
		group RTBH {
			type internal;
			import import-from-rs;
			expor deny-all;
			neighbor 1.1.1.1;
		}
	}
}

policy-options {
	policy-statement deny-all {
		term 1 {
			then reject;
		}
	}
	policy-statement import-from-rs {
		term 1 {
			from {
				community RTBH;
				route-filter 0.0.0.0/0 prefix-length-range /32-/32;
			}
			then accept;
		}
		term reject {
			then reject;
		}
	}
	community RTBH members 65001:9999;
}

抄录自https://gist.github.com/floatingstatic/854aa504a92ab8bc3e044e434ec378c4