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186526 2022-12-26 23:41:18 +08:00
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4
bird.conf Normal file
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include "./lib/*.conf";
include "./config.conf";
include "./protcol/*.conf";
include "./bird/*.conf";

9
config.conf Normal file
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define LOCAL_ASN 200536;
define DOWNSTREAM_ASN [ 140506, 200536 ];
define POP 101;
define REGION 100;
define SELFASN 4200000101;

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constant.conf Normal file
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define BOGON_ASNS = [
0, # RFC 7607
23456, # RFC 4893 AS_TRANS
64496..64511, # RFC 5398 and documentation/example ASNs
64512..65534, # RFC 6996 Private ASNs
65535, # RFC 7300 Last 16 bit ASN
65536..65551, # RFC 5398 and documentation/example ASNs
65552..131071, # RFC IANA reserved ASNs
4200000000..4294967294, # RFC 6996 Private ASNs
4294967295 # RFC 7300 Last 32 bit ASN
];
define BOGON_PREFIXES_V4 = [
0.0.0.0/8+, # RFC 1122 'this' network
10.0.0.0/8+, # RFC 1918 private space
100.64.0.0/10+, # RFC 6598 Carrier grade nat space
127.0.0.0/8+, # RFC 1122 localhost
169.254.0.0/16+, # RFC 3927 link local
172.16.0.0/12+, # RFC 1918 private space
192.0.2.0/24+, # RFC 5737 TEST-NET-1
192.88.99.0/24+, # RFC 7526 deprecated 6to4 relay anycast. If you wish to allow this, change `24+` to `24{25,32}`(no more specific)
192.168.0.0/16+, # RFC 1918 private space
198.18.0.0/15+, # RFC 2544 benchmarking
198.51.100.0/24+, # RFC 5737 TEST-NET-2
203.0.113.0/24+, # RFC 5737 TEST-NET-3
224.0.0.0/4+, # multicast
240.0.0.0/4+ # reserved
];
define BOGON_PREFIXES_V6 = [
::/8+, # RFC 4291 IPv4-compatible, loopback, et al
0064:ff9b::/96+, # RFC 6052 IPv4/IPv6 Translation
0064:ff9b:1::/48+, # RFC 8215 Local-Use IPv4/IPv6 Translation
0100::/64+, # RFC 6666 Discard-Only
2001::/32{33,128}, # RFC 4380 Teredo, no more specific
2001:2::/48+, # RFC 5180 BMWG
2001:10::/28+, # RFC 4843 ORCHID
2001:db8::/32+, # RFC 3849 documentation
2002::/16+, # RFC 7526 deprecated 6to4 relay anycast. If you wish to allow this, change `16+` to `16{17,128}`(no more specific)
3ffe::/16+, 5f00::/8+, # RFC 3701 old 6bone
fc00::/7+, # RFC 4193 unique local unicast
fe80::/10+, # RFC 4291 link local unicast
fec0::/10+, # RFC 3879 old site local unicast
ff00::/8+ # RFC 4291 multicast
];

45
lib/community-net186.conf Normal file
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filter net186_import_filter(int POPID)
int viaRegion;
bgppath public_bgp_path;
{
public_bgp_path = delete(bgp_path, [4200000000..4225479999]);
if filter(bgp_large_community, [(LOCAL_ASN, 120, *)]).len != 0 then bgp_large_community.add((LOCAL_ASN, 120, POP));
if filter(bgp_large_community, [(LOCAL_ASN, 121, *)]).len != 0 then bgp_large_community.add((LOCAL_ASN, 121, REGION));
if (LOCAL_ASN, 122, REGION) ~ bgp_large_community then bgp_large_community.add((LOCAL_ASN, 122, REGION));
# ROUTE_DECIDER Start
if (LOCAL_ASN, 110, 2) ~ bgp_large_community then bgp_local_pref = 500;
else if (LOCAL_ASN, 110, 1) ~ bgp_large_community then bgp_local_pref = 400;
else bgp_local_pref = 300;
viaRegion = 0;
# Route is via Europe & Africa & Middle East
if bgp_large_community ~ [(LOCAL_ASN, 122, 100), (LOCAL_ASN, 122, 300..310), (LOCAL_ASN, 122, 600)] then viaRegion = viaRegion + 1;
# Route is via America
if bgp_large_community ~ [(LOCAL_ASN, 122, 200..299)] then viaRegion = viaRegion + 1;
# Route is via East Asia & Oceania
if bgp_large_community ~ [(LOCAL_ASN, 122, 400..500)] then viaRegion = viaRegion + 1;
if viaRegion > 2 then reject;
else if viaRegion = 2 then bgp_local_pref = bgp_local_pref - 50;
else if viaRegion then bgp_local_pref = 0;
# Route is via China mainland but not advertise in China mainland.
if (LOCAL_ASN, 122, 430) ~ bgp_large_community && REGION != 430 && (LOCAL_ASN, 120, 430) ~ bgp_large_community then {
reject;
}
bgp_local_pref = bgp_local_pref - filter(bgp_large_community, [(LOCAL_ASN, 122, *)]).len * 10;
};
filtet net186_export_filter(int POPID) {
if (65535, 65282) ~ bgp_community then {
reject;
}
if (65535, 65283) ~ bgp_community then {
if (POPID % 10) != (POP % 10) then {
reject;
}
}
};

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lib/community-peer.conf Normal file
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function is_peer_route() {
if (LOCAL_ASN, 110, 0) ~ bgp_large_community then return false;
if (LOCAL_ASN, 110, 10) ~ bgp_large_community then return false;
if bgp_path ~ [ 7018, 3320, 3257, 6830, 3356, 2914, 5511, 3491, 1239, 6453, 6762, 1299, 12956, 701, 6461, 174, 6939] then {
return false;
}
return true;
}
filter direct_peer_import_filter(int ASN) {
if !is_valid() then reject;
pub_add_communities(ASN, 0);
pub_preprocess_communities();
if !is_peer_route() then reject;
accept;
}
filter direct_peer_export_filter(int ASN) {
if !is_valid() then reject;
# Delete Self eBGP Confed Path.
bgp_path.delete([4200000000..4225479999]);
pub_process_communities(ASN, 10);
if !is_peer_route() then reject;
accept;
}

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lib/community-transit.conf Normal file
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function pub_add_communities(int ASN, int type) {
# DIRECT PEER
if (type=0) then {
bgp_large_community.add((LOCAL_ASN, 110, 0));
bgp_large_community.add((LOCAL_ASN, 110, 2));
# PEER via IX
} else if (type=1) then {
bgp_large_community.add((LOCAL_ASN, 110, 0));
bgp_large_community.add((LOCAL_ASN, 110, 1));
j
# UPSTREAM
}else if (type=10) then {
bgp_large_community.add((LOCAL_ASN, 110, 10));
# DOWNSTREAM
} else if (type=20) then {
bgp_large_community.add((LOCAL_ASN, 110, 20));
}
# Finished (LOCAL_ASN, 110, *);
if (LOCAL_ASN, 120, POP) ~ bgp_large_community then bgp_large_community.add((LOCAL_ASN, 120, POP));
if (LOCAL_ASN, 121, REGION) ~ bgp_large_community then bgp_large_community.add((LOCAL_ASN, 121, REGION));
# Finished (LOCAL_ASN, 120~130, *);
}
function pub_preprocess_communities() {
if (LOCAL_ASN, 115, 1) ~ bgp_large_community then bgp_path.prepend(bgp_path.last);
if (LOCAL_ASN, 115, 3) ~ bgp_large_community then {
bgp_path.prepend(bgp_path.last);
bgp_path.prepend(bgp_path.last);
bgp_path.prepend(bgp_path.last);
}
if (LOCAL_ASN, 115, 5) ~ bgp_large_community then {
bgp_path.prepend(bgp_path.last);
bgp_path.prepend(bgp_path.last);
bgp_path.prepend(bgp_path.last);
bgp_path.prepend(bgp_path.last);
bgp_path.prepend(bgp_path.last);
}
# Finished (LOCAL_ASN, 115, *);
}
function pub_process_communities(int ASN, int type) {
if (LOCAL_ASN, 125, POP) ~ bgp_large_community then {
bgp_community.add((65535, 65282));
}
if (LOCAL_ASN, 126, REGION) ~ bgp_large_community then {
bgp_community.add((65535, 65283));
}
if (65535, 65281) ~ bgp_community then reject;
if (65535, 65282) ~ bgp_community then reject;
if (65535, 65283) ~ bgp_community then reject;
if (LOCAL_ASN, 2, ASN) ~ bgp_large_community then reject
# PEER
if (type<10) then {
if (LOCAL_ASN, 1, 1) ~ bgp_large_community then reject;
# UPSTREAM
} else if (type=10) then {
if (LOCAL_ASN, 1, 0) ~ bgp_large_community then reject;
# DOWNSTREAM
} else if (type=20) then {
if (LOCAL_ASN, 1, 2) ~ bgp_large_community then reject;
}
}
filter transit_import_filter(int ASN) {
if !is_valid() then reject;
pub_add_communities(ASN, 10);
pub_preprocess_communities();
accept;
}
filter transit_export_filter(int ASN) {
if !is_valid() then reject;
# Delete Self eBGP Confed Path.
bgp_path.delete([4200000000..4225479999]);
pub_process_communities(ASN, 10);
if bgp_path.last !~ DOWNSTREAM_ASN then reject;
accept;
}

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lib/util.conf Normal file
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include "./constant.conf";
function pub_is_invalid_net_length(){
case net.type {
NET_IP4: return net.len > 24;
NET_IP6: return net.len > 48;
else: print "pub_is_valid_net_length: unexpected net.type ", net.type, " ", net; return false;
}
}
function is_bogon_prefix() {
case net.type {
NET_IP4: return net ~ BOGON_PREFIXES_V4;
NET_IP6: return net ~ BOGON_PREFIXES_V6;
else: print "is_bogon_prefix: unexpected net.type ", net.type, " ", net; return false;
}
}
function is_bogon_asn() {
if bgp_path ~ BOGON_ASNS then return true;
return false;
}
function is_downstream_asn() {
if bgp_path.last ~ DOWNSTREAM_ASN then return true;
return false;
}
function is_valid() {
if pub_is_invalid_net_length() then return false;
if is_bogon_prefix() then return false;
if is_bogon_asn() then return false;
if is_rpki_invalid() then return false;
return true;
}

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protocol/external_network.conf Normal file
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template bgp pub_transit {
local as LOCAL_ASN;
ipv6 {
import filter transit_import_filter(6939);
export filter transit_export_filter(6939);
}
}
template bgp pub_peer {
local as LOCAL_ASN;
ipv6 {
import filter direct_peer_import_filter(6939);
export filter direct_peer_export_filter(6939);
}
}
template bgp pub_downstream {
local as LOCAL_ASN;
ipv6 {
import filter downstream_import_filter(6939);
export filter downstream_export_filter(6939);
}
}

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protocol/internal_network.conf Normal file
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template bgp net186 {
local as SELFASN;
interpret communities off;
bfd on;
ipv6 {
next hop self;
gateway direct;
import filter {
};
export filter {
};
}
}

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protocol/kernel.conf Normal file
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protocol device {
scan time 5;
}
protocol kernel {
scan time 20;
ipv6 {
import none;
export filter {
# Blackhole (65535, 666)
if (65535, 666) ~ bgp_community then dest = RTD_BLACKHOLE;
# Blackhole (LOCAL_ASN, 0, 666)
if (LOCAL_ASN, 0, 666) ~ bgp_large_community then dest = RTD_BLACKHOLE;
# Only Announced (LOCAL_ASN, 0, 665)
if (LOCAL_ASN, 0, 665) ~ bgp_large_community then reject;
krt_prefsrc = ROUTER_IP;
accept;
}
}
}

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protocol/rpki.conf Normal file
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roa6 table pub_roa6;
roa4 table pub_roa4;
protocol rpki pub_rpki {
roa4 {
table pub_roa4;
};
roa6 {
table pub_roa6;
};
remote "172.65.0.2" port 8282;
retry keep 5;
refresh keep 30;
expire 600;
transport tcp;
}
function is_rpki_invalid() {
if (net.type = NET_IP4 && roa_check(pub_roa4, net, bgp_path.last) = ROA_INVALID ) then {
return true;
} else if (net.type = NET_IP6 && roa_check(pub_roa6, net, bgp_path.last) = ROA_INVALID) then {
return true;
} else {
return false;
}
}

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readme.md Normal file
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# 186526 Network
- Experimental global network
- Maintained by 186526 (@real186526)
## BGP Communities
### Well known BGP Communities
| Community | Description | Action |
| -------------- | ------------ | ------------------------------------------------------------------- |
| (65535, 65281) | No Export | Prefix should not be exported outside of 186526 Network (LOCAL_ASN) |
| (65535, 65282) | No Advertise | Prefix should not be exported outside of this PoP |
| (65535, 65283) | Local AS | Prefix should not be exported outside of this region |
| (65535, 666) | Blackhole | Prefix should be blackholed at our PoP |
### Specific BGP Communities
> 186526 Network implements large BGP communities.
#### System-controllable Community
| Community | Description |
| ------------------------------- | ------------------------------------------------------- |
| (LOCAL_ASN, 110, 0) | Route learn from peer |
| (LOCAL_ASN, 110, 1) | Route learn from IX |
| (LOCAL_ASN, 110, 2) | Route learn from direct peer |
| (LOCAL_ASN, 110, 10) | Route learn from upstream |
| (LOCAL_ASN, 110, 20) | Route learn from downstream |
| (LOCAL_ASN, 120, `this PoP`) | Route learn on `this PoP` |
| (LOCAL_ASN, 121, `this region`) | Route learn in `this region` |
| (LOCAL_ASN, 122, `this region`) | Route is passed through `this region` in 186526 Network |
#### User-controllable Community
| Community | Action |
| ------------------------------- | -------------------------------------------------------------------------------- |
| (LOCAL_ASN, 0, 665) | Prefix should only be announced, not written to our routing table |
| (LOCAL_ASN, 0, 666) | Prefix should be blackholed at our PoP |
| (LOCAL_ASN, 1, 0) | Prefix should not be exported to all upstream |
| (LOCAL_ASN, 1, 1) | Prefix should not be exported to all peers |
| (LOCAL_ASN, 1, 2) | Prefix should not be exported to all downstream |
| (LOCAL_ASN, 2, `ASN`) | Prefix should not be exported to all `ASN` BGP sessions |
| (LOCAL_ASN, 3, `this region`) | Prefix should not be exported outside 186526 Network in `this region` |
| (LOCAL_ASN, 115, 1) | Route should be prepend 1x outside 186526 Network |
| (LOCAL_ASN, 115, 3) | Route should be prepend 3x outside 186526 Network |
| (LOCAL_ASN, 115, 5) | Route should be prepend 5x outside 186526 Network |
| (LOCAL_ASN, 125, `this PoP`) | Route should not be exported on `this PoP` to other PoPs in 186526 Network |
| (LOCAL_ASN, 126, `this region`) | Route should not be exported in `this region` to other regions in 186526 Network |
## Region & PoP
### Regions
| Name | Code |
| ---------------------------------- | ---- |
| Europe | 100 |
| East Coast of North America | 200 |
| Central North America | 210 |
| West Coast of North America | 220 |
| Central America | 230 |
| Eastern South America | 240 |
| West South America | 250 |
| North Africa | 300 |
| Southern Africa | 310 |
| East Asia (without China mainland) | 400 |
| Southeast Asia | 410 |
| South Asia | 420 |
| China mainland | 430 |
| Oceania | 500 |
| Middle East | 600 |
### PoP
| Name | Location | Code | Type |
| ------- | --------------------- | ---- | ---- |
| Europe | ---- | ---- |
| de-fra1 | Frankfurt am Main, DE | 101 | Core |
| uk-lhr1 | London, GB | 102 | Edge |
| nl-ams1 | Amsterdam, NL | 103 | Edge |
| lu-lux1 | Roost, LU | 104 | Core |
| America | ---- | ---- |
| us-iad1 | Ashburn, VA, US | 201 | Core |
| us-sjc1 | Fremont, CA, US | 221 | Core |
| us-lax1 | Los Angeles, CA, US | 222 | Edge |
| br-gru1 | Sao Paulo, BR | 241 | Edge |
| APAC | ---- | ---- |
| cn-hkg1 | Hong Kong SAR | 401 | Core |
| cn-tpe1 | Taipei, CN | 402 | Edge |
| jp-tyo1 | Tokyo, JP | 403 | Edge |
| sg-sin1 | Singapore | 410 | Core |
| cn-pek1 | Beijing, CN | 431 | Core |
| cn-pek2 | Beijing, CN | 432 | Edge |
| cn-can1 | Guangzhou, CN | 433 | Edge |
| au-syd1 | Sydney, AU | 501 | Core |