2017-12-20 21:10:10 +00:00
---
tags: ["kovri"]
terms: ["Router-Info", "Router-infos"]
summary: "A data structure or file which contains an I2P peer's needed network information"
---
2018-07-05 15:04:14 +00:00
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2017-12-20 21:10:10 +00:00
### The Basics
@Router -Info is a data structure (periodically written to a [binary file ](https://en.wikipedia.org/wiki/Binary_file )) which contains all needed information to locate, identify, and communicate with an @I2P peer. @Router -Info includes IP address, router identity, other misc. technical details; is needed for @network -database and is published to @floodfill routers.
### In-depth information
In human-readable form, Router-Info may look like this:
```
Identity: [RouterIdentity:
Hash: nYZ5Qe7gQ-~QgfgJVRUG4c0JnVeVqzM~duUX1EGT1ek=
Certificate: [Certificate: type: Key certificate
Crypto type: 0
Sig type: 7 (EdDSA_SHA512_Ed25519)]
PublicKey: [PublicKey: size: 256]
SigningPublicKey: [SigningPublicKey EdDSA_SHA512_Ed25519: size: 32]
Padding: 96 bytes]
Signature: [Signature EdDSA_SHA512_Ed25519: size: 64]
Published: Sun Oct 09 01:34:59 UTC 2016
Options (5):
[caps] = [LfR]
[netId] = [2]
[netdb.knownLeaseSets] = [37]
[netdb.knownRouters] = [2435]
[router.version] = [0.9.26]
Addresses (4):
[RouterAddress:
Type: SSU
Cost: 4
Options (5):
[caps] = [BC]
[host] = [2a01:e35:8b5c:b240:71a2:6750:8d4:47fa]
[key] = [nYZ5Qe7gQ-~QgfgJVRUG4c0JnVeVqzM~duUX1EGT1ek=]
[mtu] = [1472]
[port] = [22244]]
[RouterAddress:
Type: NTCP
Cost: 9
Options (2):
[host] = [2a01:e35:8b5c:b240:71a2:6750:8d4:47fa]
[port] = [22244]]
[RouterAddress:
Type: SSU
Cost: 6
Options (4):
[caps] = [BC]
[host] = [88.181.203.36]
[key] = [nYZ5Qe7gQ-~QgfgJVRUG4c0JnVeVqzM~duUX1EGT1ek=]
[port] = [22244]]
[RouterAddress:
Type: NTCP
Cost: 11
Options (2):
[host] = [88.181.203.36]
[port] = [22244]]]
```
### Notes
For details and specification, visit @Java -I2P [Network Database ](https://geti2p.net/en/docs/how/network-database ) page.
