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---
title: peering
---
Peering with burble.dn42
===
This page provides the information to get started on peering with the burble.dn42 network.
burble.dn42 is a set of global POPs integrated to the [dn42](https://dn42.us/) network, and
new peering requests are welcome. A description of the network is available in the
[about](/about) page.
burble.dn42 is a large network and there are some restrictions in place to protect both
this network and the rest of the DN42 network.
Please ensure you read the information below before requesting to peer.
####Peering Requests
Please mail **dn42@burble.com** if you'd like to peer with me.
**Peering Requirements**
To peer with burble.dn42, you must meet the following requirements:
* You must have at least **two** peerings already established with other DN42 networks
*Sorry, but burble.dn42 is not open to new starters. If you are a new starter in DN42
please use the [peerfinder](https://dn42.us/peers) or ask on [IRC](https://dn42.dev/services/IRC);
there are lots of other networks who will be happy to peer with you, and some even offer automatic
peering.
This is a tough restriction, but one that is in place to promote network diversity.*
* You must support IPv6
* You must implement ROA checks
* Contact information in the registry must always be up to date and admins must repond when contacted
*Contacts must also be reachable in case of problems. In addition, the network is ever
evolving and failure to respond to change notices may result in your peering being suspended.*
At a minimum, I'll need to know the following in order to establish a peering:
* The burble.dn42 node you would like to peer with
* Your ASN
* The public address of your host
* The tunnel parameters, e.g.
* Port number, if using wireguard or OpenVPN
* Public key for wireguard
* Any special config you need that is different to my defaults
* IP addresses of your end of the tunnel
* Typically these will be a single IPv4/32 and IPv6/128 from your DN42 allocation
<p> </p>
All peerings will be configured as a full transit session.
#### Residential ISPs and Dynamic IP addresses
A 24/7 connection, with static IP addresses are the norm for DN42. If you are connecting from a
residential ISP or otherwise have a dynamic IP please let me know so that I can configure my side
appropriately. If you don't do tell me, the peering will stop working when your IP address changes.
#### Supported Tunnel Types
I prefer to use [wireguard](https://wireguard.io/), it's simple to set up and just works.
I also support OpenVPN tunnels.
* **[Wireguard](https://wireguard.io/)**
I use a random port number and unique key for each Wireguard peer, so mail me to confirm
the port number and public key.
Endpoint names and IP addresses are detailed below.
My wireguard AllowedIPs are:
```
AllowedIPs=fe80::/64
AllowedIPs=fd00::/8
AllowedIPs=0.0.0.0/0
```
Note that wg-quick does not support adding a peer address. If you want to use wg-quick you will
need to delete and re-add the wireguard interface IP address and configure it as a point to point
address or you will run in to next-hop problems when using BGP. See the
[DN42 Wiki](https://dn42.dev/howto/wireguard) on how to use iproute2 to configure a point to point
address.
* **[OpenVPN](https://openvpn.net/)**
By default I will configure the following OpenVPN parameters, with a random OpenVPN port number
and shared key.
```
comp-lzo
cipher aes-256-cbc
auth sha256
```
####Allowed Traffic
Only the network ranges will be forwarded through the DN42 network, all other traffic will be dropped.
**IPv4**
```
172.16.0.0/12
10.0.0.0/8
```
**IPv6**
```
fd00::/8
```
BGP peer addresses are more permissive to allow for link local or non-DN42 IP addresses within the
tunnel, but these will not be forwarded through the DN42 network.
##### Flow Control and BGP Rate Limiting
A typical BGP session in DN42 will use a trivial amount of traffic. However, for large networks like
burble.dn42 some transient events, such as BGP flapping, can generate multi MB/sec traffic flows that
damange the network and create instability across DN42.
To protect the network from misconfigurations and prevent excessive updates from being propagated to the
rest of DN42, the burble.dn42 network implements rate limiting on direct BGP sessions. The rate limiting
activates when a large amount of BGP traffic is seen (typically 10's or 100's of thousands of
updates a second) over a sustained period and will typically reset automatically within an hour.
There are no other controls applied to transit or non-BGP traffic.
#### BGP Configuration
|||
|---|---|
|**Network Name** |BURBLE|
|**BURBLE-MNT**|dn42@burble.com|
|**ASN**|AS4242422601|
&nbsp;
The burble.dn42 network uses a custom build of
[bird 2](https://bird.network.cz/?get_doc&f=bird.html&v=20), and the
following features are supported:
* Multiprotocol BGP [RFC 4760](https://www.rfc-editor.org/info/rfc4760)
* BGP Large Communities [RFC 8092](http://www.rfc-editor.org/info/rfc8092)
* BGP Confederations [RFC 5065](https://www.rfc-editor.org/info/rfc5065)
* DN42 Route Origin Authorisation (ROA - see below section on Route Filtering)
* DN42 [BGP communities](https://wiki.dn42.us/howto/Bird-communities)
* burble.dn42 custom [large communities](/home/bgp-communities)
* burble.dn42 [Routing Policy](/home/routing-policy)
The source code for the custom bird used on the network is available on
[git.burble.dn42](https://git.burble.dn42/burble.dn42/bird)
**Route Filtering**
The network applies strict Route Origin Authorisation (ROA) filtering to all
received and exported routes. This means any advertised route that does
not have a corresponding route{,6} object in the DN42 registry will be dropped.
ROA is implemented with updates through RPKI, using
[dn42regsrv](https://git.dn42.us/burble/dn42regsrv) and
[gortr](https://github.com/cloudflare/gortr).
The DN42 ROA data is provided as a public service, see the [Services](/home/burble-dn42-services) page.
Generic Allowed Prefixes:
IPv4
```
172.20.0.0/14+
10.0.0.0/8+
```
IPv6
```
fd00::/8{44,64}
```
**Peering with Multiple Nodes**
Users are welcome to peer with more than one node in the burble.dn42 network to provide
additional redundancy and route choice. It's highly recommended to peer with multiple users DN42
users though, it's lots of fun and you should never rely on just one user for your connectivity.
#### Testing
Within the tunnel, hosts respond to ping and traceroute, but also have the echo (port 7) and
daytime (port 13) services enabled. These can be used to check the tunnel is up and configured
correctly.
```
$ ping fe80::42:2601:32:1%wg0
PING fe80::42:2601:32:1%wg0(fe80::42:2601:32:1%wg0) 56 data bytes
64 bytes from fe80::42:2601:32:1%wg0: icmp_seq=1 ttl=64 time=4.44 ms
64 bytes from fe80::42:2601:32:1%wg0: icmp_seq=2 ttl=64 time=4.52 ms
64 bytes from fe80::42:2601:32:1%wg0: icmp_seq=3 ttl=64 time=4.96 ms
^C
--- fe80::42:2601:32:1%wg0 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.445/4.643/4.961/0.233 ms
$ netcat fe80::42:2601:32:1%wg0 13
Sun Sep 23 09:57:26 2018
^C
$
```
Once peering is established I have a BGP looking glass [here](https://lg.burble.com/) (public
internet link) and global route [collector](https://grc.burble.com) which can be used to
check routing. The looking glass is a key resource for you to use when understanding how your
routes are propogating around the DN42 network.
#### Automated reachability and latency testing
pingable.burble.dn42 (172.20.129.5 / fd42:4242:2601:ac05::1) is a dedicated address
that responds to ping and traceroute and may be used for automated reachability or
link quality testing.
Please be considerate when configuring automated tests and set a reasonable test frequency.
In all cases, the frequency must not be more than once a second. Please consider this if your
router automatically pings its tunnel endpoint for stats purposes.
---
#### Network Information
The burble.dn42 is fully meshed between nodes using wireguard tunnels.
|||
|---|---|
|**IPv4 Prefix (Services)** |172.20.129.0/27|
|**IPv4 Prefix (Nodes)** |172.20.129.160/27|
|**IPv6 Prefix** |fd42:4242:2601::/48|
### Europe
####dn42-fr-rbx1
|||
|---|---|
|**Location**|OVH, Roubaix, France|
|**Public Hostname**|dn42-fr-rbx1.burble.com|
|**Public IPv4 Address**|37.59.47.71|
|**Public IPv6 Address**|2001:41d0:8:6a47::1|
|**Tunnel IPv4 Peer Address**|172.20.129.188/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:36:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:36::1/128|
*fr-sbg1 will be decommissioned November 2020*
####dn42-fr-sbg1
|||
|---|---|
|**Location**|OVH, Strasbourg, France|
|**Public Hostname**|dn42-fr-sbg1.burble.com|
|**Public IPv4 Address**|37.187.174.185|
|**Public IPv6 Address**|2001:41d0:d:db9::1|
|**Tunnel IPv4 Peer Address**|172.20.129.179/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:23:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:23::1/128|
####dn42-uk-lon1
|||
|---|---|
|**Location**|Inception Hosting, London, UK|
|**Public Hostname**|dn42-uk-lon1.burble.com|
|**Public IPv4 Address**|185.121.25.242|
|**Public IPv6 Address**|2a04:92c7:e:bd2::e6b9|
|**Tunnel IPv4 Peer Address**|172.20.129.187/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:35:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:35::1/128|
####dn42-de-fra1
|||
|---|---|
|**Location**|PHP Friends, Frankfurt, Germany|
|**Public Hostname**|dn42-de-fra1.burble.com|
|**Public IPv4 Address**|193.41.237.149|
|**Public IPv6 Address**|2a0d:5941:1:17c::4e2a|
|**Tunnel IPv4 Peer Address**|172.20.129.169/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:31:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:31::1/128|
####dn42-ch-zur1
|||
|---|---|
|**Location**|HostHatch, Zurich, Switzerland|
|**Public Hostname**|dn42-ch-zur1.burble.com|
|**Public IPv4 Address**|45.91.92.111|
|**Public IPv6 Address**|2a0e:dc0:6:8::1|
|**Tunnel IPv4 Peer Address**|172.20.129.174/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:28:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:28::1/128|
####dn42-no-trd1
|||
|---|---|
|**Location**|Trondheim, Norway|
|**Public Hostname**|dn42-no-trd1.burble.com|
|**Public IPv4 Address**|217.168.87.226|
|**Public IPv6 Address**|2001:678:dd0:ffff::25|
|**Tunnel IPv4 Peer Address**|172.20.129.185/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:39:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:39::1/128|
### North America
####dn42-ca-bhs2
|||
|---|---|
|**Location**|OVH, Beauharnois, Canada|
|**Public Hostname**|dn42-ca-bhs2.burble.com|
|**Public IPv4 Address**|158.69.248.26|
|**Public IPv6 Address**|2607:5300:120:81a::1|
|**Tunnel IPv4 Peer Address**|172.20.129.167/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:2d:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:2d::1/128|
*us-chi1 will be decommissioned and is not open to new peerings*
####dn42-us-chi1
|||
|---|---|
|**Location**|HostHatch, Chicago, United States|
|**Public Hostname**|dn42-us-chi1.burble.com|
|**Public IPv4 Address**|193.29.63.150|
|**Public IPv6 Address**|2605:4840:3:10::ab2d|
|**Tunnel IPv4 Peer Address**|172.20.129.166/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:2e:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:2e::1/128|
*us-mia2 will be decommissioned and is not open to new peerings*
####dn42-us-mia2
|||
|---|---|
|**Location**|StockServers (defunct), Miami, United States|
|**Public Hostname**|dn42-us-mia2.burble.com|
|**Public IPv4 Address**|216.126.233.109|
|**Public IPv6 Address**|2a09:be40:2908:bc43::1|
|**Tunnel IPv4 Peer Address**|172.20.129.164/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:3f:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:3f::1/128|
*us-nyc1 will be decommissioned and is not open to new peerings*
####dn42-us-nyc1
|||
|---|---|
|**Location**|HostHatch, New York, United States|
|**Public Hostname**|dn42-us-nyc1.burble.com|
|**Public IPv4 Address**|185.213.26.143|
|**Public IPv6 Address**|2a0d:5600:33:b::1|
|**Tunnel IPv4 Peer Address**|172.20.129.168/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:34:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:34::1/128|
####dn42-us-dal3
|||
|---|---|
|**Location**|drserver, Dallas, United States|
|**Public Hostname**|dn42-us-dal3.burble.com|
|**Public IPv4 Address**|144.172.126.201|
|**Public IPv6 Address**|2602:fe64:8::4|
|**Tunnel IPv4 Peer Address**|172.20.129.172/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:2a:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:2a::1/128|
####dn42-us-lax1
|||
|---|---|
|**Location**|LetBox, Los Angeles, United States|
|**Public Hostname**|dn42-us-lax1.burble.com|
|**Public IPv4 Address**|185.215.224.214|
|**Public IPv6 Address**|2a0b:ae40:1:4a0a::5a|
|**Tunnel IPv4 Peer Address**|172.20.129.165/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:3a:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:3a::1/128|
*us-sea2 will be decommissioned and is not open to new peerings*
####dn42-us-sea2
|||
|---|---|
|**Location**|Virmach, Seattle, United States|
|**Public Hostname**|dn42-us-sea2.burble.com|
|**Public IPv4 Address**|96.8.121.205|
|**Public IPv6 Address**|`IPv4 Only`|
|**Tunnel IPv4 Peer Address**|172.20.129.170/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:2c:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:2c::1/128|
### Asia and Oceania
*sg-sin1 will be decommissioned and is not open to new peerings*
####dn42-sg-sin1
|||
|---|---|
|**Location**|ITLDC, Singapore|
|**Public Hostname**|dn42-sg-sin1.burble.com|
|**Public IPv4 Address**|5.34.177.110|
|**Public IPv6 Address**|2a05:9401:0:acdc::210|
|**Tunnel IPv4 Peer Address**|172.20.129.177/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:25:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:25::1/128|
####dn42-sg-sin2
|||
|---|---|
|**Location**|OVH, Singapore|
|**Public Hostname**|dn42-sg-sin2.burble.com|
|**Public IPv4 Address**|139.99.89.157|
|**Public IPv6 Address**|2402:1f00:8000:800::3bc|
|**Tunnel IPv4 Peer Address**|172.20.129.181/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:37:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:37::1/128|
####dn42-au-syd1
|||
|---|---|
|**Location**|OVH, Sydney, Australia|
|**Public Hostname**|dn42-au-syd1.burble.com|
|**Public IPv4 Address**|139.99.237.85|
|**Public IPv6 Address**|2402:1f00:8100:400::279|
|**Tunnel IPv4 Peer Address**|172.20.129.180/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:38:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:38::1/128|
*jp-tyo1 will be decommissioned and is not open to new peerings*
####dn42-jp-tyo1
|||
|---|---|
|**Location**|GreenCloudVPS, Tokyo, Japan|
|**Public Hostname**|dn42-jp-tyo1.burble.com|
|**Public IPv4 Address**|172.93.221.101|
|**Public IPv6 Address**|2403:71c0:2000::d:8b97|
|**Tunnel IPv4 Peer Address**|172.20.129.182/32|
|**Tunnel IPv6 Link Local**|fe80::42:2601:3e:1/64|
|**Tunnel IPv6 ULA**|fd42:4242:2601:3e::1/128|
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