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@ -1,4 +1,4 @@ |
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# $OpenBSD: bgpd.conf,v 1.13 2018/09/09 12:49:44 benno Exp $ |
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# $OpenBSD: bgpd.conf,v 1.14 2018/09/10 09:10:36 claudio Exp $ |
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# example bgpd configuration file, see bgpd.conf(5) |
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# define our own ASN as a macro |
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@ -14,6 +14,35 @@ prefix-set mynetworks { \ |
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2001:db8:abcd::/48 \ |
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} |
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# define bogon prefixes which should not be part of the DFZ |
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prefix-set bogons { |
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0.0.0.0/8 # 'this' network [RFC1122] |
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10.0.0.0/8 # private space [RFC1918] |
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100.64.0.0/10 # CGN Shared [RFC6598] |
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127.0.0.0/8 # localhost [RFC1122] |
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169.254.0.0/16 # link local [RFC3927] |
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172.16.0.0/12 # private space [RFC1918] |
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192.0.2.0/24 # TEST-NET-1 [RFC5737] |
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192.88.99.0/24 # 6to4 anycast relay [RFC7526] |
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192.168.0.0/16 # private space [RFC1918] |
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198.18.0.0/15 # benchmarking [RFC2544] |
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198.51.100.0/24 # TEST-NET-2 [RFC5737] |
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203.0.113.0/24 # TEST-NET-3 [RFC5737] |
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224.0.0.0/4 # multicast |
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240.0.0.0/4 # reserved for future use |
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::/8 # RFC 4291 IPv4-compatible, loopback, et al |
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0100::/64 # Discard-Only [RFC6666] |
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2001:2::/48 # BMWG [RFC5180] |
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2001:10::/28 # ORCHID [RFC4843] |
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2001:db8::/32 # docu range [RFC3849] |
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2002::/16 # 6to4 anycast relay [RFC7526] |
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3ffe::/16 # old 6bone |
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fc00::/7 # unique local unicast |
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fe80::/10 # link local unicast |
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fec0::/10 # old site local unicast |
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ff00::/8 # multicast |
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} |
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# Generate routes for the networks our ASN will originate. |
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# The communities (read 'tags') are later used to match on what |
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# is announced to EBGP neighbors |
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@ -85,29 +114,16 @@ allow from any inet6 prefixlen 16 - 48 |
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# https://tools.ietf.org/html/rfc8326 |
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match from any community GRACEFUL_SHUTDOWN set { localpref 0 } |
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# See http://bgpfilterguide.nlnog.net/guides/bogon_prefixes/ for |
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# an elaboration why each prefix is a bogon |
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prefix-set bogons { \ |
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0.0.0.0/8 or-longer 10.0.0.0/8 or-longer \ |
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100.64.0.0/10 or-longer 127.0.0.0/8 or-longer \ |
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169.254.0.0/16 or-longer 172.16.0.0/12 or-longer \ |
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192.0.2.0/24 or-longer 192.88.99.0/24 or-longer \ |
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192.168.0.0/16 or-longer 198.18.0.0/15 or-longer \ |
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198.51.100.0/24 or-longer 203.0.113.0/24 or-longer \ |
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224.0.0.0/4 or-longer 240.0.0.0/4 or-longer \ |
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::/8 or-longer 0100::/64 or-longer \ |
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2001:2::/48 or-longer 2001:10::/28 or-longer \ |
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2001:db8::/32 or-longer 2002::/16 or-longer \ |
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3ffe::/16 or-longer fc00::/7 or-longer \ |
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fe80::/10 or-longer fec0::/10 or-longer \ |
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ff00::/8 or-longer \ |
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} |
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# use above prefix-set to reject the bogons |
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deny quick from any prefix-set bogons |
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# use prefix-set to reject the bogons |
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deny quick from any prefix-set bogons or-longer |
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# filter bogon AS numbers |
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# see http://bgpfilterguide.nlnog.net/guides/bogon_asns/ for more |
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# information why these ASNs are bogons. |
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# AS_TRANS (23456) is not supposed to show up in any path and indicates a |
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# missconfiguration. Additionally Private or Reserved ASNs have no place in |
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# the public DFZ. http://www.iana.org/assignments/as-numbers/as-numbers.xhtml |
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deny quick from any AS 23456 |
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deny quick from any AS 64496 - 131071 |
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deny quick from any AS 4200000000 - 4294967295 |
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# filter out too long paths |
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deny from any max-as-len 100 |
claudio
5 years ago