i2pd configuration
i2pd can be configured via either command-line arguments or config files.
Modifying i2pd.conf is just a way of passing command line arguments to i2pd at boot;
for example, running i2pd with argument --port=10123 and setting option port = 10123 in config file will have
the same effect.
There are two separate config files: i2pd.conf and tunnels.conf. i2pd.conf is the main configuration file, where
you configure all options. tunnels.conf is the tunnel configuration file, where you configure I2P hidden services
and client tunnels. the tunnels.conf options are documented here.
i2pd.conf accets INI-like syntax, such as the following : = .
Comments are "#", not ";" as you might expect. See boost ticket
All command-line parameters are allowed as keys, but for those which contains dot (.), there is a special syntax.
For example:
i2pd.conf:
# comment
log = true
ipv6 = true
# settings for specific module
[httpproxy]
port = 4444
# ^^ this will be --httproxy.port= in cmdline
# another comment
[sam]
enabled = true
You are also encouraged to see the commented config with examples of all options in contrib/i2pd.conf.
Options specified on the command line take precedence over those in the config file.
If you are upgrading your very old router (< 2.3.0) see also this page.
Available options
Run ./i2pd --help to show builtin help message (default value of option will be shown in braces)
General options
| Option |
Description |
| conf |
Config file (default: ~/.i2pd/i2pd.conf or /var/lib/i2pd/i2pd.conf). This parameter will be silently ignored if the specified config file does not exist. |
| tunconf |
Tunnels config file (default: ~/.i2pd/tunnels.conf or /var/lib/i2pd/tunnels.conf) |
| pidfile |
Where to write pidfile (dont write by default) |
| log |
Logs destination: stdout, file, syslog (stdout if not set, file - otherwise, for compatibility) |
| logfile |
Path to logfile (default - autodetect) |
| loglevel |
Log messages above this level (debug, info, warn, error, none; default - info) |
| logclftime |
Write full CLF-formatted date and time to log (default: write only time) |
| datadir |
Path to storage of i2pd data (RI, keys, peer profiles, ...) |
| host |
Router external IP for incoming connections |
| port |
Port to listen for incoming connections (default: auto) |
| daemon |
Router will go to background after start |
| service |
Router will use system folders like '/var/lib/i2pd' |
| ifname |
Network interface to bind to |
| ifname4 |
Network interface to bind to for IPv4 |
| ifname6 |
Network interface to bind to for IPv6 |
| nat |
If true, assume we are behind NAT. true by default |
| ipv4 |
Enable communication through IPv4. true by default |
| ipv6 |
Enable communication through IPv6. false by default |
| notransit |
Router will not accept transit tunnels, disabling transit traffic completely. false by default |
| floodfill |
Router will be floodfill. false by default |
| bandwidth |
Bandwidth limit: integer in KBps or letters: L (32), O (256), P (2048), X (>9000) |
| share |
Max % of bandwidth limit for transit. 0-100. 100 by default |
| family |
Name of a family, router belongs to |
| netid |
Network ID, router belongs to. Main I2P is 2. |
| ssu |
Enable SSU transport protocol (use UDP). true by default |
| ntcp |
Enable NTCP transport protocol (use TCP). true by default |
| ntcpproxy |
Specify proxy server for NTCP. Should be http://address:port or socks://address:port |
Notes
datadir and service options are only used as arguments for i2pd, these options have no effect when set in i2pd.conf.
Windows-specific options
| Option |
Description |
| svcctl |
Windows service management (--svcctl="install" or --svcctl="remove") |
| insomnia |
Prevent system from sleeping |
| close |
Action on close: minimize, exit, ask |
All options below still possible in cmdline, but better write it in config file:
HTTP webconsole
| Option |
Description |
| http.enabled |
If webconsole is enabled. true by default |
| http.address |
The address to listen on (HTTP server) |
| http.port |
The port to listen on (HTTP server) 7070 by default |
| http.auth |
Enable basic HTTP auth for webconsole |
| http.user |
Username for basic auth (default: i2pd) |
| http.pass |
Password for basic auth (default: random, see logs) |
| http.strictheaders |
Enable strict host checking on WebUI. true by default |
| http.hostname |
Expected hostname for WebUI (default: localhost) |
HTTP proxy
| Option |
Description |
| httpproxy.enabled |
If HTTP proxy is enabled. true by default |
| httpproxy.address |
The address to listen on (HTTP Proxy) |
| httpproxy.port |
The port to listen on (HTTP Proxy) 4444 by default |
| httpproxy.addresshelper |
Enable address helper (jump). true by default |
| httpproxy.keys |
Optional keys file for HTTP proxy local destination |
| httpproxy.signaturetype |
Signature type for new keys if keys file is set. 7 by default |
| httpproxy.inbound.length |
Inbound tunnels length if keys is set. 3 by default |
| httpproxy.inbound.quantity |
Inbound tunnels quantity if keys is set. 5 by default |
| httpproxy.outbound.length |
Outbound tunnels length if keys is set. 3 by default |
| httpproxy.outbound.quantity |
Outbound tunnels quantity if keys is set. 5 by default |
| httpproxy.outproxy |
HTTP proxy upstream out proxy url (like http://false.i2p) |
Socks proxy
| Option |
Description |
| socksproxy.enabled |
If SOCKS proxy is enabled. true by default |
| socksproxy.address |
The address to listen on (SOCKS Proxy) |
| socksproxy.port |
The port to listen on (SOCKS Proxy). 4447 by default |
| socksproxy.keys |
Optional keys file for SOCKS proxy local destination |
| socksproxy.signaturetype |
Signature type for new keys if keys file is set. 7 by default |
| socksproxy.inbound.length |
Inbound tunnels length if keys is set. 3 by default |
| socksproxy.inbound.quantity |
Inbound tunnels quantity if keys is set. 5 by default |
| socksproxy.outbound.length |
Outbound tunnels length if keys is set. 3 by default |
| socksproxy.outbound.quantity |
Outbound tunnels quantity if keys is set. 5 by default |
| socksproxy.outproxy |
Address of outproxy. requests outside I2P will go there |
| socksproxy.outproxyport |
Outproxy remote port |
SAM interface
| Option |
Description |
| sam.address |
The address to listen on (SAM bridge) |
| sam.port |
Port of SAM bridge. Usually 7656. SAM is off if not specified |
| sam.enabled |
If SAM is enabled. true by default |
BOB interface
| Option |
Description |
| bob.address |
The address to listen on (BOB command channel) |
| bob.port |
Port of BOB command channel. Usually 2827. BOB is off if not specified |
| bob.enabled |
If BOB is enabled. false by default |
I2CP interface
| Option |
Description |
| i2cp.address |
The address to listen on or an abstract address for Android LocalSocket |
| i2cp.port |
Port of I2CP server. Usually 7654. Ignored for Andorid |
| i2cp.enabled |
If I2CP is enabled. false by default. Other services don't require I2CP |
I2PControl interface
| Option |
Description |
| i2pcontrol.address |
The address to listen on (I2P control service) |
| i2pcontrol.port |
Port of I2P control service. Usually 7650. I2PControl is off if not specified |
| i2pcontrol.enabled |
If I2P control is enabled. false by default |
| i2pcontrol.password |
I2P control authentication password. itoopie by default |
| i2pcontrol.cert |
I2P control HTTPS certificate file name. i2pcontrol.crt.pem by default |
| i2pcontrol.key |
I2P control HTTPS certificate key file name. i2pcontrol.key.pem by default |
UPNP
| Option |
Description |
| upnp.enabled |
Enable or disable UPnP, false by default for CLI and true for GUI (Windows, Android) |
| upnp.name |
Name i2pd appears in UPnP forwardings list. I2Pd by default |
Cryptography
| Option |
Description |
| precomputation.elgamal |
Use ElGamal precomputated tables. false for x64 and true for other platforms by default |
Reseeding
| Option |
Description |
| reseed.verify |
Verify .su3 signature. false by default |
| reseed.urls |
Reseed URLs, separated by comma |
| reseed.file |
Path to local .su3 file or HTTPS URL to reseed from |
| reseed.zipfile |
Path to local .zip file to reseed from |
| reseed.threshold |
Minimum number of known routers before requesting reseed. 25 by default |
| reseed.proxy |
Url for https/socks reseed proxy |
Addressbook options
| Option |
Description |
| addressbook.defaulturl |
AddressBook subscription URL for initial setup |
| addressbook.subscriptions |
AddressBook subscriptions URLs, separated by comma |
Limits
| Option |
Description |
| limits.transittunnels |
Override maximum number of transit tunnels. 2500 by default |
| limits.openfiles |
Limit number of open file descriptors (0 - use system limit) |
| limits.coresize |
Maximum size of corefile in Kb (0 - use system limit) |
| limits.ntcpsoft |
Threshold to start probabalistic backoff with ntcp sessions (0 - use system limit) |
| limits.ntcphard |
Maximum number of ntcp sessions (0 - use system limit) |
Trust options
| Option |
Description |
| trust.enabled |
Enable explicit trust options. false by default |
| trust.family |
Make direct I2P connections only to routers in specified Family. |
| trust.routers |
Make direct I2P connections only to routers specified here. Comma separated list of base64 identities. |
| trust.hidden |
Should we hide our router from other routers? false by default |
Websocket server
| Option |
Description |
| websockets.enabled |
Enable websocket server. Disabled by default |
| websockets.address |
Address to bind websocket server on. 127.0.0.1 by default |
| websockets.port |
Port to bind websocket server on. 7666 by default |
Exploratory tunnels
| Option |
Description |
| exploratory.inbound.length |
Exploratory inbound tunnels length. 2 by default |
| exploratory.inbound.quantity |
Exploratory inbound tunnels quantity. 3 by default |
| exploratory.outbound.length |
Exploratory outbound tunnels length. 2 by default |
| exploratory.outbound.quantity |
Exploratory outbound tunnels length. 3 by default |
NTCP2
| Option |
Description |
| ntcp2.enabled |
Enable NTCP2. Enabled by default |
| ntcp2.published |
Enable incoming NTCP2 connections. Disabled by default |
| ntcp2.port |
Port to listen for incoming NTCP2 connections (default: auto) |
| ntcp2.addressv6 |
External IPv6 for incoming connections |
Time sync
| Option |
Description |
| nettime.enabled |
Enable NTP sync. Disabled by default |
| nettime.ntpservers |
Comma-separated list of NTP server. pool.ntp.org by default |
| nettime.ntpsyncinterval |
NTP time sync interval in hours. 72 by default |
| Option |
Description |
| persist.profiles |
Enable peer profile persisting to disk. Enabled by default |
Local addressbook
There is also a special addressbook config file in the working directory at addressbook/local.csv.
It is used to map long I2P destinations to short, human readable domain names. The syntax is csv and
it can be modified manually if the user wishes.