add peer exchange nwaku config (#83)

* add peer exchange nwaku config

* add PX security note
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LordGhostX 2023-07-07 02:17:02 +01:00 committed by GitHub
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4 changed files with 60 additions and 25 deletions

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@ -14,31 +14,31 @@ You can provide static peers to a `nwaku` node during startup using the `staticn
```bash
./build/wakunode2 \
--staticnode:[Libp2p MULTIADDR PEER 1] \
--staticnode:[Libp2p MULTIADDR PEER 2]
--staticnode=[PEER MULTIADDR 1] \
--staticnode=[PEER MULTIADDR 2]
```
For instance, consider a `nwaku` node that connects to two static peers on the same local host (IP: `0.0.0.0`) using TCP ports `60002` and `60003`:
```bash
./build/wakunode2 \
--staticnode:/ip4/0.0.0.0/tcp/60002/p2p/16Uiu2HAkzjwwgEAXfeGNMKFPSpc6vGBRqCdTLG5q3Gmk2v4pQw7H \
--staticnode:/ip4/0.0.0.0/tcp/60003/p2p/16Uiu2HAmFBA7LGtwY5WVVikdmXVo3cKLqkmvVtuDu63fe8safeQJ
--staticnode=/ip4/0.0.0.0/tcp/60002/p2p/16Uiu2HAkzjwwgEAXfeGNMKFPSpc6vGBRqCdTLG5q3Gmk2v4pQw7H \
--staticnode=/ip4/0.0.0.0/tcp/60003/p2p/16Uiu2HAmFBA7LGtwY5WVVikdmXVo3cKLqkmvVtuDu63fe8safeQJ
```
## Configure DNS Discovery
To enable [DNS Discovery](/overview/concepts/dns-discovery) in a `nwaku` node, use the following configuration options:
- `dns-discovery`: Enables DNS Discovery on the node (disabled by default).
- `dns-discovery`: Enables `DNS Discovery` on the node (disabled by default).
- `dns-discovery-url`: URL for DNS node list in the format `enrtree://<key>@<fqdn>` where `<fqdn>` is the fully qualified domain name and `<key>` is the base32 encoding of the compressed 32-byte public key that signed the list at that location.
- `dns-discovery-name-server` (optional): DNS name server IPs to query. You can repeat this option to provide multiple DNS name servers.
```bash
./build/wakunode2 \
--dns-discovery:true \
--dns-discovery-url:[DNS NODE LIST] \
--dns-discovery-name-server:[DNS NAME SERVER IP]
--dns-discovery=true \
--dns-discovery-url=[DNS NODE LIST] \
--dns-discovery-name-server=[DNS NAME SERVER IP]
```
:::info
@ -49,34 +49,64 @@ For instance, consider a `nwaku` node that enables `DNS Discovery`, connects to
```bash
./build/wakunode2 \
--dns-discovery:true \
--dns-discovery-url:enrtree://AOGECG2SPND25EEFMAJ5WF3KSGJNSGV356DSTL2YVLLZWIV6SAYBM@test.waku.nodes.status.im \
--dns-discovery-name-server:8.8.8.8 \
--dns-discovery-name-server:8.8.4.4
--dns-discovery=true \
--dns-discovery-url=enrtree://AOGECG2SPND25EEFMAJ5WF3KSGJNSGV356DSTL2YVLLZWIV6SAYBM@test.waku.nodes.status.im \
--dns-discovery-name-server=8.8.8.8 \
--dns-discovery-name-server=8.8.4.4
```
## Configure Discv5
To enable [Discv5](/overview/concepts/discv5) in a `nwaku` node, use the following configuration options:
- `discv5-discovery`: Enables Discv5 on the node (disabled by default).
- `discv5-bootstrap-node`: ENR for Discv5 routing table bootstrap node. You can repeat this option to provide multiple bootstrap entries.
- `discv5-discovery`: Enables `Discv5` on the node (disabled by default).
- `discv5-bootstrap-node`: ENR for `Discv5` routing table bootstrap node. You can repeat this option to provide multiple bootstrap entries.
```bash
./build/wakunode2 \
--discv5-discovery:true \
--discv5-bootstrap-node:[DISCV5 ENR BOOTSTRAP ENTRY 1] \
--discv5-bootstrap-node:[DISCV5 ENR BOOTSTRAP ENTRY 2]
--discv5-discovery=true \
--discv5-bootstrap-node=[DISCV5 ENR BOOTSTRAP ENTRY 1] \
--discv5-bootstrap-node=[DISCV5 ENR BOOTSTRAP ENTRY 2]
```
For instance, consider a `nwaku` node that enables `Discv5` and bootstraps its routing table using a static `ENR`:
```bash
./build/wakunode2 \
--discv5-discovery:true \
--discv5-bootstrap-node:enr:-IO4QDxToTg86pPCK2KvMeVCXC2ADVZWrxXSvNZeaoa0JhShbM5qed69RQz1s1mWEEqJ3aoklo_7EU9iIBcPMVeKlCQBgmlkgnY0iXNlY3AyNTZrMaEDdBHK1Gx6y_zv5DVw5Qb3DtSOMmVHTZO1WSORrF2loL2DdWRwgiMohXdha3UyAw
--discv5-discovery=true \
--discv5-bootstrap-node=enr:-IO4QDxToTg86pPCK2KvMeVCXC2ADVZWrxXSvNZeaoa0JhShbM5qed69RQz1s1mWEEqJ3aoklo_7EU9iIBcPMVeKlCQBgmlkgnY0iXNlY3AyNTZrMaEDdBHK1Gx6y_zv5DVw5Qb3DtSOMmVHTZO1WSORrF2loL2DdWRwgiMohXdha3UyAw
```
:::info
When Discv5 is enabled and used with [DNS Discovery](#configure-dns-discovery), the `nwaku` node will attempt to bootstrap the Discv5 routing table by extracting `ENRs` from peers discovered through DNS.
:::
## Configure Peer Exchange
To enable [Peer Exchange](/overview/concepts/peer-exchange) in a `nwaku` node, use the following configuration options:
- `peer-exchange`: Enables `Peer Exchange` on the node as a responder (disabled by default).
- `peer-exchange-node` (optional): ENR for bootstrap node that has the peer exchange protocol enabled.
```bash
./build/wakunode2 \
--peer-exchange=true \
--peer-exchange-node=[PEER MULTIADDR WITH EXCHANGE ENABLED]
```
For instance, consider two `nwaku` nodes configured as a `server` (peer exchange responder node) and `client` (node using peer exchange) on the same local host (IP: `0.0.0.0`):
```bash title="Server: Nwaku Node with Peer Exchange Enabled"
./build/wakunode2 --peer-exchange=true
```
```bash title="Client: Nwaku Node Bootstrapping with Peer Exchange"
./build/wakunode2 \
--tcp-port=30305 \
--ports-shift=1 \
--peer-exchange-node=/ip4/0.0.0.0/tcp/60000/p2p/16Uiu2HAmLCe6zVqCS6KMqqRbbhyoJjfYZGr1Q3thTSbyKzibQkFR
```
:::info
`nwaku` provides a [`relay-peer-exchange`](/guides/reference/node-config-options#relay-config) option via `libp2p` for peer exchange, allowing network growth through neighboring nodes. However, this feature can compromise security and network robustness, so we recommend only using it in high-trust environments.
:::

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@ -45,10 +45,10 @@ Run `nwaku` using the most typical configuration:
```bash
docker run -i -t -p 60000:60000 -p 9000:9000/udp statusteam/nim-waku \
--dns-discovery:true \
--dns-discovery-url:enrtree://AOGECG2SPND25EEFMAJ5WF3KSGJNSGV356DSTL2YVLLZWIV6SAYBM@prod.waku.nodes.status.im \
--discv5-discovery \
--nat:extip:[YOUR PUBLIC IP] # or, if you are behind a nat: --nat=any
--dns-discovery=true \
--dns-discovery-url=enrtree://AOGECG2SPND25EEFMAJ5WF3KSGJNSGV356DSTL2YVLLZWIV6SAYBM@prod.waku.nodes.status.im \
--discv5-discovery=true \
--nat=extip:[YOUR PUBLIC IP] # or, if you are behind a nat: --nat=any
```
To find your public IP, use:

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@ -57,6 +57,7 @@ To join the Waku Network, nodes must [bootstrap](/overview/reference/glossary#bo
| Static Peers | Configure the bootstrap nodes that `nwaku` should establish connections upon startup | [Configure Static Peers](/guides/nwaku/configure-discovery#configure-static-peers) |
| DNS Discovery | Enable `nwaku` to bootstrap nodes using the [DNS Discovery](/overview/concepts/dns-discovery) mechanism | [Configure DNS Discovery](/guides/nwaku/configure-discovery#configure-dns-discovery) |
| Discv5 | Enable `nwaku` to discover peers using the [Discv5](/overview/concepts/discv5) mechanism | [Configure Discv5](/guides/nwaku/configure-discovery#configure-discv5) |
| Peer Exchange | Enable [Peer Exchange](/overview/concepts/peer-exchange) protocol for light nodes to request peers from your `nwaku` node | [Configure Peer Exchange](/guides/nwaku/configure-discovery#configure-peer-exchange) |
:::tip
You can configure a `nwaku` node to use multiple peer discovery mechanisms simultaneously.
@ -112,7 +113,7 @@ The `listenAddresses` field stores the node's listening addresses, while the `en
You can find the addresses of a running node through its logs or by calling the `get_waku_v2_debug_v1_info` method of the [JSON RPC API](https://rfc.vac.dev/spec/16/).
:::tip
:::info
When starting the node, `nwaku` will display all the public listening and discovery addresses at the `INFO` log level.
:::

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@ -2,7 +2,11 @@
title: Peer Exchange
---
The primary objective of this protocol is to facilitate peer connectivity for resource-limited devices. The peer exchange protocol enables lightweight nodes to request peers from other nodes within the network. Light nodes can bootstrap and expand their mesh independently without relying on `Discv5`. Please refer to the [Peer Exchange](https://rfc.vac.dev/spec/34/) specification to learn more.
The primary objective of this protocol is to facilitate peer connectivity for resource-limited devices without relying on `Discv5`. The peer exchange protocol enables light nodes to request peers from other nodes within the network. To learn more, please refer to the [Peer Exchange](https://rfc.vac.dev/spec/34/) specification.
:::info
Peer Exchange enables requesting random peers from other network nodes without revealing information about their connectivity or neighborhood.
:::
#### Pros