mirror of https://github.com/waku-org/nwaku.git
61 lines
2.4 KiB
Markdown
61 lines
2.4 KiB
Markdown
|
# Connect to other peers
|
||
|
|
|
||
|
|
*Note that this tutorial describes how to **configure** a node to connect to other peers before runnning the node.
|
||
|
|
For connecting a running node to existing peers,
|
||
|
|
see the [JSON-RPC API](https://rfc.vac.dev/spec/16/).*
|
||
|
|
|
||
|
|
There are currently three options.
|
||
|
|
Note that each of these options can be used in combination with any of the other two.
|
||
|
|
In other words, it is possible to configure a node to connect
|
||
|
|
to a static list of peers and
|
||
|
|
to discover such peer lists using DNS discovery and
|
||
|
|
discover and connect to random peers using discovery v5 with a bootstrap node.
|
||
|
|
|
||
|
|
## Option 1: Configure peers statically
|
||
|
|
|
||
|
|
Static peers can be provided to a nwaku node on startup using the `--staticnode` CLI parameter.
|
||
|
|
The `--staticnode` option can be repeated for each peer you want to connect to on startup.
|
||
|
|
|
||
|
|
```sh
|
||
|
|
./build/wakunode2 \
|
||
|
|
--staticnode:<libp2p-multiaddr-peer1> \
|
||
|
|
--staticnode:<libp2p-multiaddr-peer2>
|
||
|
|
```
|
||
|
|
|
||
|
|
As an example, consider a nwaku node that connects to two known peers
|
||
|
|
on the same local host (with IP `0.0.0.0`)
|
||
|
|
with TCP ports `60002` and `60003`,
|
||
|
|
and peer IDs `16Uiu2HAkzjwwgEAXfeGNMKFPSpc6vGBRqCdTLG5q3Gmk2v4pQw7H` and `16Uiu2HAmFBA7LGtwY5WVVikdmXVo3cKLqkmvVtuDu63fe8safeQJ` respectively.
|
||
|
|
|
||
|
|
```sh
|
||
|
|
./build/wakunode2 \
|
||
|
|
--staticnode:/ip4/0.0.0.0/tcp/60002/p2p/16Uiu2HAkzjwwgEAXfeGNMKFPSpc6vGBRqCdTLG5q3Gmk2v4pQw7H \
|
||
|
|
--staticnode:/ip4/0.0.0.0/tcp/60003/p2p/16Uiu2HAmFBA7LGtwY5WVVikdmXVo3cKLqkmvVtuDu63fe8safeQJ
|
||
|
|
```
|
||
|
|
|
||
|
|
## Option 2: Discover peers using DNS discovery
|
||
|
|
|
||
|
|
A node can discover other nodes to connect to using DNS-based discovery.
|
||
|
|
For a quickstart guide on how to configure DNS discovery,
|
||
|
|
see [this tutorial](./configure-dns-disc.md).
|
||
|
|
There is also a [more comprehensive tutorial](../../tutorial/dns-disc.md) for advanced users.
|
||
|
|
|
||
|
|
## Option 3: Discover peers using Waku Discovery v5
|
||
|
|
|
||
|
|
<!-- TODO: add link to a separate discv5 config tutorial here -->
|
||
|
|
|
||
|
|
Enable Discovery v5 using the `--discv5-discovery` option.
|
||
|
|
|
||
|
|
It is possible to configure bootstrap entries for the Discovery v5 routing table
|
||
|
|
using the `--discv5-bootstrap-node` option repeatedly.
|
||
|
|
|
||
|
|
```sh
|
||
|
|
./build/wakunode2 \
|
||
|
|
--discv5-discovery:true \
|
||
|
|
--discv5-bootstrap-node:<discv5-enr-bootstrap-entry1> \
|
||
|
|
--discv5-bootstrap-node:<discv5-enr-bootstrap-entry2>
|
||
|
|
```
|
||
|
|
|
||
|
|
Note that if Discovery v5 is enabled and used in conjunction with DNS-based discovery,
|
||
|
|
the nwaku node will attempt to bootstrap the Discovery v5 routing table with ENRs extracted from the peers discovered via DNS.
|