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# IPv4 Address Plan
| Prefix | Usage | Routing |
| ---------------- | ----------------------------------------------- | -------------------------------- |
| 192.175.40.0/22 | Customer /32 (was acquired from LonsdaleNet) | Accept IPv4 /32 from Aggregation |
| 185.149.208.0/22 | Customer /32 (was acquired from LonsdaleNet) | Accept IPv4 /32 from Aggregation |
| 185.66.204.0/22 | Customer /32 (was acquired from Fibre WiFi) | Accept IPv4 /32 from Aggregation |
| 149.255.168.0/21 | Customer /32 (was acquired from Fibre WiFi) | Accept IPv4 /32 from Aggregation |
| 193.162.44.0/24 | Core and Loopbacks | (not announced to DFZ) |
| 172.22.0.0/16 | Management | Static |
| 172.22.0.0/24 | Infrastructure/Servers | Static /32, via Wireguard |
| 172.22.1.0/24 | OOB/Management at TN2 | Static /24, via Wireguard |
| 172.22.2.0/24 | OOB/Management at LD5 | Static /24, via Wireguard |
| 172.22.3.0/24 | OOB/Management at MA1 | Static /24, via Wireguard |
| 172.22.4.0/24 | OOB/Management at PUE | Static /24, via Wireguard |
| 100.64.0.0/10 | RFC6598 CGNAT for customer access | OSPF within agg network |
| 169.254.0.0/16 | Link-local addressing for linknets | Used to establish BGP to Core |
## Core: Loopbacks and Linknets
| Prefix | Usage | Routing |
| ----------------- | ----------------------------------------------- | -------------------------------- |
| 193.162.44.0/29 | Core Loopbacks, including blackhole destination | IS-IS; and to establish iBGP |
| 193.162.44.8/29 | Core Linknets | IS-IS core adjacencies |
| 193.162.44.16/28 | reserved for future Core Linknets | IS-IS core adjacencies |
| 193.162.44.32/27 | reserved for future Core Infrastructure | reserved |
| 193.162.44.64/26 | reserved for future Core Infrastructure | reserved |
| 193.162.44.128/25 | reserved for future Core Infrastructure | reserved |
### Infrastructure Linknets to Aggregation Routers
| Prefix | Usage | Routing |
| ------------------ | ----------------------------------------- | ------- |
| 169.254.0.0/21 | cr1.tn2 via NNC067 to aggregation routers | BGP |
| 169.254.64.0/21 | cr1.ld5 via NNC068 to aggregation routers | BGP |
| 169.254.128.0/21 | cr1.ma1 via NNC069 to aggregation routers | BGP |
| 169.254.192.0/21 | cr1.pue via NNC070 to aggregation routers | BGP |
# IPv6 Address Plan
| Prefix | Usage | Routing |
| -------------- | ------------------------------------------------ | --------------------------------------------- |
| 2a04:1840::/29 | Business Static /48 (can de-agg to /52) | Accept IPv6 /48-/52 from Aggregation |
| 2a0b:8640::/29 | Residential /56 (was acquired from Dyfed IT) | Accept IPv6 /40-/48 from Aggregation |
| 2a0d:a0c0::/29 | Residential /56 (was acquired from LonsdaleNET) | (will become like 2a0b:8640::/29 if required) |
| 2a10:f0c0::/29 | Core and Loopbacks (was acquired from FibreWiFi) | (not announced to DFZ) |
## Core: Loopbacks and Linknets
| Prefix | Usage | Routing |
| ------------------- | --------------------------- | -------------------- |
| 2a10:f0c0:0000::/48 | Core Linknets and Loopbacks | Some subnets may BGP |
| 2a10:f0c0:1000::/40 | BGP-speaking Infrastructure | Can speak BGP |
| 2a10:f0c0:1001::/48 | Infrastructure at TN2 | Can speak BGP |
| 2a10:f0c0:1002::/48 | Infrastructure at LD5 | Can speak BGP |
| 2a10:f0c0:1003::/48 | Infrastructure at MA1 | Can speak BGP |
| 2a10:f0c0:1004::/48 | Infrastructure at PUE | Can speak BGP |
### Infrastructure Linknets to Aggregation Routers
| Prefix | Usage | Routing |
| ----------------------------- | --------------------------------------------------------------- | ------- |
| 2a01:f0c0:1001:0001:0067::/80 | cr1.tn2 (1 from 193.162.44.1) via NNC067 to aggregation routers | BGP |
| 2a01:f0c0:1002:0002:0068::/80 | cr1.ld5 (2 from 193.162.44.2) via NNC068 to aggregation routers | BGP |
| 2a01:f0c0:1003:0003:0069::/80 | cr1.ma1 (3 from 193.162.44.3) via NNC069 to aggregation routers | BGP |
| 2a01:f0c0:1004:0004:0070::/80 | cr1.pue (4 from 193.162.44.4) via NNC070 to aggregation routers | BGP |
Prefix scheme is `2a01:f0c0:10SS:CCCC:NNNN:YYYY:ZZZZ::/112` where:
* `SS` = site
* `CCCC` = Core router IPv6 loopback last 16 bits
* `NNNN` = NNI number
* `YYYY` = outer VLAN tag (VLAN tag ordered with Neos goes here)
* `ZZZZ` = inner VLAN tag (if double-tagging for some future reason)
Addressing within the prefix is as follows:
* `::CCCC/112` = Core router loopback last 16 bits (e.g. `::1/112` through `::4/112`)
* `::a001/112` = Aggregation router 1
* `::a002/112` = Aggregation router 2 (...etc)
# BGP Communities
## `59811:2` send to aggregation routers
These are routes learned from ASNs that Voneus meets at 2 (or more) locations.
## `59811:666` DDoS and blackhole
Where:
* `/24` = only send to Voxility
* `/32` = announce to RTBH on ixs/upstreams/UTRS
## `65535:666` COMMUNITY-AS59811-BLACKHOLE
## `59811:6500x` originated from site
Where:
* `x` is from:
- `0` = all
- `1` = TN2
- `2` = LD5
- `3` = MA1
- `4` = PUE
## `650xy:zzzzz`
Where:
* `x` is from:
- `0` = all
- `1` = TN2
- `2` = LD5
- `3` = MA1
- `4` = PUE
* `y` is from:
- `0` = no-announce
- `1` = prepend 1
- `2` = prepend 2
- `3` = prepend 3
- `9` = no-export
* `z` is ASN, where:
- `0` = any peer/upstream/downstream
- `1299` = Arelion
- `2914` = NTT
- `3223` = Voxility (NB see also 59811:666)
- `6762` = TISparkle
- `65511` = Tampnet (would be 200781)
- `65521` = LON1
- `65522` = LON2
- `65523` = LINX Manchester
- `65524` = LINX Scotland
- `65525` = LONAP
# BGP Local Preferences
## Transit
* `100` => transit (de-pref)
* `200` => transit
* `300` => transit (up-pref)
## Peering
* `400` => peering (de-pref) - default for IX route-servers
* `500` => peering - default for direct sessions over IX
* `600` => peering (up-pref) - default for PNI
## Customer
* `700` => downstream (de-pref)
* `800` => downstream
* `900` => downstream (up-pref)

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# IPv6 Address Plan
2a04:1840::/29 Business Static /48-/52 (was acquired from FibreWiFi)
2a0b:8640::/29 Residential /56 (was acquired from Dyfed IT) Accept IPv6 /40-/48 from Aggregation
2a0d:a0c0::/29 Acquired from LonsdaleNET (will become like 2a0b:8640::/29 if required)
2a10:f0c0::/29 Core and Loopbacks (not announced to DFZ)
2a10:f0c0::/48 Core Linknets and Loopbacks
2a01:f0c0:0001:0001:0067::/80 Linknets from cr1.tn2 (1 from 193.162.44.1) via NNC067 to Aggregation
2a01:f0c0:0002:0002:0068::/80 Linknets from cr1.ld5 (2 from 193.162.44.2) via NNC068 to Aggregation
2a01:f0c0:0003:0003:0069::/80 Linknets from cr1.ma1 (3 from 193.162.44.3) via NNC069 to Aggregation
2a01:f0c0:0004:0004:0070::/80 Linknets from cr1.pue (4 from 193.162.44.4) via NNC070 to Aggregation
2a01:f0c0:ssss:cccc:nnnn:yyyy:zzzz:1/112 ssss = site
cccc = core router
nnnn = NNI number
yyyy = outer VLAN tag (S-tag, probably 0)
zzzz = inner VLAN tag (C-tag, Neos usual VLAN tagging)
::c001 = core
::a001 = agg
# Communities
59811:2 => routes learned from ASNs that Voneus meets at 2 (or more) locations
59811:666 => /24 = only send to Voxility
/32 = announce to RTBH on ixs/upstreams/UTRS
65535:666 => COMMUNITY-AS59811-BLACKHOLE
59811:6500x => originated from site
|
x => 0 = all
1 = TN2
2 = LD5
3 = MA1
4 = PUE
650xy:zzzzz
||||
x => 0 = all
| | 1 = TN2
| | 2 = LD5
| | 3 = MA1
| | 4 = PUE
| |
y => 0 = no-announce
| 1 = prepend 1
| 2 = prepend 2
| 3 = prepend 3
| 9 = no-export
|
zzzzz => 0 = any peer/upstream/downstream
1299 = Arelion
2914 = NTT
3223 = Voxility (NB see also 59811:666)
6762 = TISparkle
65511 = Tampnet (would be 200781)
65521 = LON1
65522 = LON2
65523 = LINX Manchester
65524 = LINX Scotland
65525 = LONAP
LOCAL PREFERENCES
100 => transit (de-pref)
200 => transit
300 => transit (up-pref)
400 => peering (de-pref) - default for IX route-servers
500 => peering - default for direct sessions over IX
600 => peering (up-pref) - default for PNI
700 => downstream (de-pref)
800 => downstream
900 => downstream (up-pref)

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