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# $OpenBSD: bgpd.conf,v 1.7 2017/09/22 09:28:47 phessler Exp $
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# sample bgpd configuration file
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# see bgpd.conf(5)
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#macros
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peer1="10.1.0.2"
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peer2="10.1.0.3"
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# global configuration
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AS 65001
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router-id 10.0.0.1
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# holdtime 180
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# holdtime min 3
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# listen on 127.0.0.1
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# listen on ::1
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# fib-update no
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# route-collector no
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# log updates
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# network 10.0.1.0/24
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# restricted socket for bgplg(8)
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# socket "/var/www/run/bgpd.rsock" restricted
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# neighbors and peers
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group "peering AS65002" {
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remote-as 65002
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neighbor $peer1 {
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descr "AS 65001 peer 1"
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announce self
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tcp md5sig password mekmitasdigoat
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}
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neighbor $peer2 {
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descr "AS 65001 peer 2"
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announce all
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local-address 10.0.0.8
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ipsec esp ike
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}
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}
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group "peering AS65042" {
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descr "peering AS 65042"
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remote-as 65042
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local-address 10.0.0.8
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ipsec ah ike
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neighbor 10.2.0.1
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neighbor 10.2.0.2
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}
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neighbor 10.0.1.0 {
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remote-as 65003
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descr upstream
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multihop 2
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local-address 10.0.0.8
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passive
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holdtime 180
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holdtime min 3
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announce none
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tcp md5sig key deadbeef
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}
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neighbor 10.0.2.0 {
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remote-as 65004
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descr upstream2
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local-address 10.0.0.8
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ipsec ah ike
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}
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neighbor 10.0.0.0/24 {
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descr "template for local peers"
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enforce neighbor-as no
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}
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neighbor 10.2.1.1 {
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remote-as 65023
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local-address 10.0.0.8
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ipsec esp in spi 10 sha1 0a4f1d1f1a1c4f3c9e2f6f0f2a8e9c8c5a1b0b3b \
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aes 0c1b3a6c7d7a8d2e0e7b4f3d5e8e6c1e
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ipsec esp out spi 12 sha1 0e9c8f6a8e2c7d3a0b5d0d0f0a3c5c1d2b8e0f8b \
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aes 4e0f2f1b5c4e3c0d0e2f2d3b8c5c8f0b
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}
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# do not send or use routes from EBGP neighbors without
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# further explicit configuration
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deny from ebgp
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deny to ebgp
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# allow updates to and from IBGP neighbors
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allow from ibgp
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allow to ibgp
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# filter out prefixes longer than 24 or shorter than 8 bits for IPv4
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# and longer than 48 or shorter than 16 bits for IPv6.
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allow from any inet prefixlen 8 - 24
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allow from any inet6 prefixlen 16 - 48
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# accept a default route (since the previous rule blocks this)
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#allow from any prefix 0.0.0.0/0
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#allow from any prefix ::/0
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# Honor requests to gracefully shutdown BGP sessions
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# https://tools.ietf.org/html/draft-ietf-grow-bgp-gshut
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match from any community GRACEFUL_SHUTDOWN set { localpref 0 }
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# https://www.arin.net/announcements/2014/20140130.html
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# This block will be subject to a minimum size allocation of /28 and a
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# maximum size allocation of /24. ARIN should use sparse allocation when
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# possible within that /10 block.
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allow from any prefix 23.128.0.0/10 prefixlen 24 - 28 # ARIN IPv6 transition
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# filter bogus networks according to RFC5735
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deny from any prefix 0.0.0.0/8 prefixlen >= 8 # 'this' network [RFC1122]
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deny from any prefix 10.0.0.0/8 prefixlen >= 8 # private space [RFC1918]
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deny from any prefix 100.64.0.0/10 prefixlen >= 10 # CGN Shared [RFC6598]
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deny from any prefix 127.0.0.0/8 prefixlen >= 8 # localhost [RFC1122]
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deny from any prefix 169.254.0.0/16 prefixlen >= 16 # link local [RFC3927]
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deny from any prefix 172.16.0.0/12 prefixlen >= 12 # private space [RFC1918]
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deny from any prefix 192.0.2.0/24 prefixlen >= 24 # TEST-NET-1 [RFC5737]
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deny from any prefix 192.168.0.0/16 prefixlen >= 16 # private space [RFC1918]
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deny from any prefix 198.18.0.0/15 prefixlen >= 15 # benchmarking [RFC2544]
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deny from any prefix 198.51.100.0/24 prefixlen >= 24 # TEST-NET-2 [RFC5737]
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deny from any prefix 203.0.113.0/24 prefixlen >= 24 # TEST-NET-3 [RFC5737]
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deny from any prefix 224.0.0.0/4 prefixlen >= 4 # multicast
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deny from any prefix 240.0.0.0/4 prefixlen >= 4 # reserved
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# filter bogus IPv6 networks according to IANA
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deny from any prefix ::/8 prefixlen >= 8
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deny from any prefix 0100::/64 prefixlen >= 64 # Discard-Only [RFC6666]
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deny from any prefix 2001:2::/48 prefixlen >= 48 # BMWG [RFC5180]
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deny from any prefix 2001:10::/28 prefixlen >= 28 # ORCHID [RFC4843]
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deny from any prefix 2001:db8::/32 prefixlen >= 32 # docu range [RFC3849]
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deny from any prefix 3ffe::/16 prefixlen >= 16 # old 6bone
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deny from any prefix fc00::/7 prefixlen >= 7 # unique local unicast
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deny from any prefix fe80::/10 prefixlen >= 10 # link local unicast
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deny from any prefix fec0::/10 prefixlen >= 10 # old site local unicast
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deny from any prefix ff00::/8 prefixlen >= 8 # multicast
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# filter bogon AS numbers
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# http://www.iana.org/assignments/as-numbers/as-numbers.xhtml
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deny from any AS 23456 # AS_TRANS
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deny from any AS 64496 - 64511 # Reserved for use in docs and code RFC5398
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deny from any AS 64512 - 65534 # Reserved for Private Use RFC6996
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deny from any AS 65535 # Reserved RFC7300
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deny from any AS 65536 - 65551 # Reserved for use in docs and code RFC5398
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deny from any AS 65552 - 131071 # Reserved
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deny from any AS 4200000000 - 4294967294 # Reserved for Private Use RFC6996
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deny from any AS 4294967295 # Reserved RFC7300
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