Projet

Général

Profil

BGP » Historique » Version 54

Laurent GUERBY, 27/03/2013 17:24

1 20 Laurent GUERBY
{{>toc}}
2 20 Laurent GUERBY
3 1 Laurent GUERBY
h1. BGP
4 1 Laurent GUERBY
5 1 Laurent GUERBY
Nous utilisons BIRD sous Linux comme routeur BGP
6 1 Laurent GUERBY
7 1 Laurent GUERBY
http://bird.network.cz/
8 1 Laurent GUERBY
9 14 Laurent GUERBY
blog bgp http://www.renesys.com/blog/
10 15 Laurent GUERBY
flowspec http://www.slideshare.net/sfouant/an-introduction-to-bgp-flow-spec
11 16 Laurent GUERBY
DFZ = Default Free Zone archive http://archive.routeviews.org/
12 17 Laurent GUERBY
http://www.ripe.net/data-tools/stats/ris/routing-information-service
13 17 Laurent GUERBY
http://pch.net/resources/data/routing-tables/archive/
14 17 Laurent GUERBY
http://pch.net/resources/data/routing-tables/mrt-bgp-updates/
15 18 Laurent GUERBY
http://www.nanog.org/meetings/archive/
16 52 Laurent GUERBY
http://tools.ietf.org/html/draft-lapukhov-bgp-routing-large-dc-02
17 14 Laurent GUERBY
18 43 Laurent GUERBY
http://inside.godaddy.com/inside-story-happened-godaddy-com-sept-10-2012/
19 43 Laurent GUERBY
20 29 Laurent GUERBY
http://www.ipbcop.org/
21 29 Laurent GUERBY
IP Best Current Operational Practices Documented best practices for Engineers by Engineers
22 29 Laurent GUERBY
23 30 Laurent GUERBY
BGP best practices ANSSI
24 30 Laurent GUERBY
https://www.sstic.org/media/SSTIC2012/SSTIC-actes/influence_des_bonnes_pratiques_sur_les_incidents_b/SSTIC2012-Article-influence_des_bonnes_pratiques_sur_les_incidents_bgp-contat_valadon_nataf_2.pdf
25 30 Laurent GUERBY
26 37 Laurent GUERBY
https://www.ams-ix.net/technical/specifications-descriptions/ams-ix-route-servers
27 37 Laurent GUERBY
28 39 Laurent GUERBY
these LAAS BGP http://www.laas.fr/1-31360-Detail-Soutenance-de-these.php?id=600
29 41 Laurent GUERBY
http://www.laas.fr/1-31706-Publications.php?author=7738
30 1 Laurent GUERBY
http://www.net.t-labs.tu-berlin.de/papers/OMUPMO-OOSICP-11.pdf
31 42 Laurent GUERBY
http://hal.archives-ouvertes.fr/docs/00/60/53/83/PDF/dVirt-virtual_platform.pdf
32 42 Laurent GUERBY
http://hal.archives-ouvertes.fr/docs/00/48/70/74/PDF/Poster_SIGCOMM2010_philippe.pdf
33 40 Laurent GUERBY
34 44 Laurent GUERBY
Le monde sur BGP http://reseaux.blog.lemonde.fr/2012/11/04/routage-enjeu-cyberstrategie/
35 44 Laurent GUERBY
36 45 Laurent GUERBY
coupure free wanadoo http://www.journaldunet.com/solutions/0301/030122_freeft.shtml
37 45 Laurent GUERBY
38 46 Laurent GUERBY
tsunami Japon 2011 et BGP : http://archive.psg.com/111206.conext-quake.pdf
39 46 Laurent GUERBY
40 47 Laurent GUERBY
Session is up on telnet:route-views.routeviews.org username rviews
41 47 Laurent GUERBY
42 48 Laurent GUERBY
BGP book http://www.bortzmeyer.org/files/bgp.html
43 48 Laurent GUERBY
44 49 Laurent GUERBY
Cyclops is able to detect several forms of route hijack attacks http://cyclops.cs.ucla.edu/
45 50 Laurent GUERBY
BGPmon monitors the routing of your prefixes and alerts you in case of an 'interesting' path chang http://www.bgpmon.net/
46 49 Laurent GUERBY
47 53 Laurent GUERBY
http://jointtransit.nl/prices.html
48 53 Laurent GUERBY
49 54 Laurent GUERBY
http://blog.cloudflare.com/the-ddos-that-knocked-spamhaus-offline-and-ho
50 54 Laurent GUERBY
51 51 Laurent GUERBY
* taille table de routage http://bgp.potaroo.net/
52 51 Laurent GUERBY
53 38 Laurent GUERBY
h1. TouIX et GIX
54 38 Laurent GUERBY
55 38 Laurent GUERBY
http://touix.net
56 38 Laurent GUERBY
http://wikilulu.net/doku.php?id=articles:gix-howto
57 38 Laurent GUERBY
58 3 Laurent GUERBY
h1. Evolutions de la conf BGP
59 3 Laurent GUERBY
60 3 Laurent GUERBY
* http://lists.tetaneutral.net/pipermail/technique/2011-December/000118.html
61 3 Laurent GUERBY
62 5 Laurent GUERBY
TODO: 
63 6 Laurent GUERBY
* mise en place d'un gestionaire de version style git au moins pour documentation
64 5 Laurent GUERBY
* Comment gerer les password MD5 du fichier de conf (les garder secrets tout en publiant le reste)
65 5 Laurent GUERBY
* Atelier ?
66 7 Laurent GUERBY
** Laurent GUERBY
67 9 Raphaël Durand
** Solarus
68 10 Raphaël Durand
** Ajouter son nom...
69 4 Laurent GUERBY
70 13 Laurent GUERBY
Alternative a MP BGP
71 13 Laurent GUERBY
http://tools.ietf.org/html/draft-ietf-idr-bgp-multisession-06
72 13 Laurent GUERBY
73 31 Laurent GUERBY
Add Path
74 31 Laurent GUERBY
http://tools.ietf.org/html/draft-ietf-idr-add-paths-07
75 31 Laurent GUERBY
support in bird ? http://marc.info/?l=bird-users&m=134409996129466&w=2
76 31 Laurent GUERBY
77 2 Laurent GUERBY
h1. Liens
78 2 Laurent GUERBY
79 2 Laurent GUERBY
* http://www.cl.cam.ac.uk/~tgg22/talks/BGP_TUTORIAL_ICNP_2002.ppt
80 11 Laurent GUERBY
* http://www.menog.net/menog-meetings/menog5/presentations/smith-32bit-asn-update.pdf
81 12 Laurent GUERBY
* AS4 http://www.rfc-editor.org/rfc/rfc4893.txt
82 19 Laurent GUERBY
* bonnes pratiques incidents BGP
83 19 Laurent GUERBY
** https://www.sstic.org/media/SSTIC2012/SSTIC-actes/influence_des_bonnes_pratiques_sur_les_incidents_b/SSTIC2012-Slides-influence_des_bonnes_pratiques_sur_les_incidents_bgp-contat_valadon_nataf.pdf
84 35 Laurent GUERBY
* test ping plus UDP http://www.broadband-forum.org/technical/download/TR-143.pdf
85 2 Laurent GUERBY
86 1 Laurent GUERBY
h1. Configuration Toulouse
87 1 Laurent GUERBY
88 1 Laurent GUERBY
<pre>
89 1 Laurent GUERBY
router id 91.224.148.2;
90 1 Laurent GUERBY
define myas = 197422;
91 1 Laurent GUERBY
92 1 Laurent GUERBY
93 1 Laurent GUERBY
protocol device {
94 1 Laurent GUERBY
	scan time 10;
95 1 Laurent GUERBY
        primary "eth0" 91.224.148.3;
96 1 Laurent GUERBY
}
97 1 Laurent GUERBY
98 1 Laurent GUERBY
protocol static static_bgp {
99 1 Laurent GUERBY
	import all;
100 1 Laurent GUERBY
	route 91.224.148.0/23 reject;
101 1 Laurent GUERBY
}
102 1 Laurent GUERBY
103 1 Laurent GUERBY
104 1 Laurent GUERBY
protocol kernel{
105 1 Laurent GUERBY
	import all;
106 1 Laurent GUERBY
	export all;
107 1 Laurent GUERBY
}
108 1 Laurent GUERBY
109 1 Laurent GUERBY
110 1 Laurent GUERBY
function avoid_martians()
111 1 Laurent GUERBY
prefix set martians;
112 1 Laurent GUERBY
{
113 1 Laurent GUERBY
  martians = [ 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+ ];
114 1 Laurent GUERBY
115 1 Laurent GUERBY
  # Avoid 0.0.0.0/X
116 1 Laurent GUERBY
  if net.ip = 0.0.0.0 then return false;
117 1 Laurent GUERBY
118 1 Laurent GUERBY
  # Avoid too short and too long prefixes
119 1 Laurent GUERBY
  if (net.len < 8) || (net.len > 24) then return false;
120 1 Laurent GUERBY
121 1 Laurent GUERBY
  # Avoid RFC1918 networks
122 1 Laurent GUERBY
  if net ~ martians then return false;
123 1 Laurent GUERBY
  return true;
124 1 Laurent GUERBY
}
125 1 Laurent GUERBY
126 1 Laurent GUERBY
filter bgp_OUT {
127 1 Laurent GUERBY
	if (net ~ [91.224.148.0/23]) then accept;
128 1 Laurent GUERBY
	else reject;
129 1 Laurent GUERBY
}
130 1 Laurent GUERBY
131 1 Laurent GUERBY
132 1 Laurent GUERBY
protocol bgp TOUIX {
133 1 Laurent GUERBY
        local as myas;
134 1 Laurent GUERBY
        neighbor 91.213.236.1 as 47184;
135 1 Laurent GUERBY
        preference 200;
136 1 Laurent GUERBY
        import where avoid_martians();
137 1 Laurent GUERBY
        export filter bgp_OUT;
138 1 Laurent GUERBY
}
139 1 Laurent GUERBY
140 1 Laurent GUERBY
protocol bgp JAGUAR {
141 1 Laurent GUERBY
	 local as myas;
142 1 Laurent GUERBY
	 neighbor 31.172.233.1 as 30781;
143 1 Laurent GUERBY
	 preference 50;
144 1 Laurent GUERBY
         import where avoid_martians();
145 1 Laurent GUERBY
         export filter bgp_OUT;
146 1 Laurent GUERBY
}
147 1 Laurent GUERBY
148 1 Laurent GUERBY
protocol bgp TETANEUTRAL {
149 1 Laurent GUERBY
	local as myas;
150 1 Laurent GUERBY
	neighbor 91.224.148.2 as myas;
151 1 Laurent GUERBY
	preference 100;
152 1 Laurent GUERBY
	import where avoid_martians();
153 1 Laurent GUERBY
	export all;
154 1 Laurent GUERBY
}
155 1 Laurent GUERBY
</pre>
156 20 Laurent GUERBY
157 33 Laurent GUERBY
h1. IRR
158 33 Laurent GUERBY
159 33 Laurent GUERBY
* From nanog:
160 33 Laurent GUERBY
http://www.clarksys.com/blog/2009/09/02/using-irr-with-level3/
161 33 Laurent GUERBY
whois -h filtergen.level3.net "RIPE::YOUR-AS-SET  -searchpath=RIPE;ARIN;RADB -recurseok -warnonly"
162 33 Laurent GUERBY
163 20 Laurent GUERBY
h1. Blackholing
164 20 Laurent GUERBY
165 24 Laurent GUERBY
h2. Attaques
166 24 Laurent GUERBY
167 24 Laurent GUERBY
* 20120629 http://lists.tetaneutral.net/pipermail/technique/2012-July/000406.html
168 36 Laurent GUERBY
* http://blog.cloudflare.com/65gbps-ddos-no-problem
169 24 Laurent GUERBY
170 34 Laurent GUERBY
h2. URPF
171 34 Laurent GUERBY
172 34 Laurent GUERBY
blacklister une/plusieures sources est relativement complexe à mettre en place sur une petite infrastructure car nécessite la mise en place de l'URPF (Unicast Reverse Path Forwarding).
173 34 Laurent GUERBY
174 34 Laurent GUERBY
http://www.cisco.com/web/about/security/intelligence/ipv6_rtbh.html
175 34 Laurent GUERBY
176 20 Laurent GUERBY
h2. RFC3882 
177 1 Laurent GUERBY
178 22 Laurent GUERBY
* http://www.ietf.org/rfc/rfc3882.txt
179 1 Laurent GUERBY
community AS:666 sur annonce /32 pour balckhole par AS upstream
180 1 Laurent GUERBY
181 22 Laurent GUERBY
* doc CISCO
182 22 Laurent GUERBY
http://www.cisco.com/web/about/security/intelligence/blackhole.pdf
183 22 Laurent GUERBY
184 28 Laurent GUERBY
h2. RFC1997
185 28 Laurent GUERBY
186 28 Laurent GUERBY
* http://www.ietf.org/rfc/rfc1997.txt
187 28 Laurent GUERBY
BGP Communities Attribute
188 28 Laurent GUERBY
189 28 Laurent GUERBY
* doc CISCO
190 28 Laurent GUERBY
http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_6-2/bgp_communities.html
191 28 Laurent GUERBY
192 22 Laurent GUERBY
h2. BIRD
193 22 Laurent GUERBY
194 22 Laurent GUERBY
* http://www.mail-archive.com/bird-users@atrey.karlin.mff.cuni.cz/msg01998.html
195 22 Laurent GUERBY
196 24 Laurent GUERBY
h2. Absolight
197 24 Laurent GUERBY
198 24 Laurent GUERBY
* communauté 29608:65001 sur /24..32 IPv4 et /41..128 IPv6 => blackhole
199 24 Laurent GUERBY
* test 20120703 IPv4 et IPv6, ça marche et convergence très rapide
200 24 Laurent GUERBY
201 22 Laurent GUERBY
h2. GIXE
202 22 Laurent GUERBY
203 1 Laurent GUERBY
* communauté 31576:666 sur /32 => blackhole
204 24 Laurent GUERBY
* test 20120703 => marche pas encore, signalé et dev a faire coté GIXE pour autoriser les /32
205 1 Laurent GUERBY
206 1 Laurent GUERBY
h2. Jaguar 
207 22 Laurent GUERBY
208 24 Laurent GUERBY
* https://extranet.jaguar-network.com/app/public/index.php?cmd=bgp-policy
209 22 Laurent GUERBY
* demande 20120702 : pas de communauté blackhole actuellement, en reflexion
210 22 Laurent GUERBY
* déploiement de matériel arbor networks, reglage a affiner (pas de detection d'attaque)
211 22 Laurent GUERBY
212 27 Laurent GUERBY
h2. Gitoyen
213 27 Laurent GUERBY
214 1 Laurent GUERBY
* demande 20120704 sur la liste, réponse 20120717
215 28 Laurent GUERBY
* Tata http://noc.easycolocate.nl/Teleglobe_bgp_comm.pdf
216 27 Laurent GUERBY
*** => black-hole route (host route or shorter prefix within customer’s RIR registred assignment) 64999:0
217 28 Laurent GUERBY
* Ielo  whois AS29075 => 29075:0 Null-route/Blackhole
218 32 Laurent GUERBY
* https://pad.ilico.org/p/cleanup-bgp-gitoyen
219 22 Laurent GUERBY
220 22 Laurent GUERBY
h2. France-IX
221 22 Laurent GUERBY
222 25 Laurent GUERBY
* community plan : https://apps.db.ripe.net/whois/lookup/ripe/aut-num/AS51706.html
223 26 Laurent GUERBY
* TODO tester
224 22 Laurent GUERBY
225 22 Laurent GUERBY
h2. Equinix-IX
226 1 Laurent GUERBY
227 26 Laurent GUERBY
* community plan : https://ix.equinix.com/ixp/mlpeCommunityInfo
228 26 Laurent GUERBY
* TODO tester
229 22 Laurent GUERBY
230 1 Laurent GUERBY
h2. TouIX
231 22 Laurent GUERBY
232 26 Laurent GUERBY
* demande acces switch et route server 20120702
233 22 Laurent GUERBY
* TODO
234 1 Laurent GUERBY
235 1 Laurent GUERBY
h2. Hurricane Electric
236 1 Laurent GUERBY
237 26 Laurent GUERBY
* http://www.he.net/adm/
238 1 Laurent GUERBY
* http://www.he.net/adm/blackhole.html
239 1 Laurent GUERBY
* TODO tester
240 28 Laurent GUERBY
241 28 Laurent GUERBY
h2. Sfinx
242 28 Laurent GUERBY
243 28 Laurent GUERBY
* http://www.renater.fr/route-servers-bgp?lang=fr
244 28 Laurent GUERBY
* whois  AS1304 =>
245 28 Laurent GUERBY
remarks:        1304:65281 = Apply NO-EXPORT community
246 28 Laurent GUERBY
remarks:        1304:65282 = Apply NO-ADVERTISE community