Title: Connection Management
Description: Connect and configure your Ethernet interface.
URL: /v2.1/ethernet/connection/
Version: v2.1
Section: Ethernet
Search index: /search-index.json

# Connection Management

> Connect and configure your Ethernet interface.

## On this page

- [Connection Status](#connection-status)
- [Disconnecting](#disconnecting)
- [Configuration](#configuration)
- [View Current Configuration](#view-current-configuration)
- [DHCP Configuration](#dhcp-configuration)
- [Static IP Configuration](#static-ip-configuration)
- [MAC Address Management](#mac-address-management)
- [System Time](#system-time)
- [Get Current Time](#get-current-time)
- [Set System Time](#set-system-time)
- [Sync Time via NTP](#sync-time-via-ntp)

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Manage your Ethernet connection with configuration and status commands.
Tip: The Ethernet interface can be used with the DNS sinkhole — once connected via Ethernet, sinkhole start will use the Ethernet IP automatically. See [DNS Sinkhole](/wifi/dns-sinkhole) for details.
## Connection Status
Check if Ethernet is connected and view link information:
ethup
Displays connection status, IP address, and link speed.
## Disconnecting
Bring down the Ethernet interface:
ethdown
## Configuration
### View Current Configuration
ethconfig show
Displays current IP settings (DHCP or static).
### DHCP Configuration
Enable DHCP to automatically obtain an IP address:
ethconfig dhcp
### Static IP Configuration
Set a static IP address:
ethconfig static <ip> <netmask> <gateway>
Example:
ethconfig static 192.168.1.100 255.255.255.0 192.168.1.1
## MAC Address Management
View or modify the MAC address:
ethmac
Shows current MAC address.
ethmac set <xx:xx:xx:xx:xx:xx>
Set a custom MAC address. Use with caution—changing MAC addresses may affect network access.
## System Time
### Get Current Time
time
Displays the current system time including local time, UTC time, and Unix timestamp.
### Set System Time
settime <unix_timestamp>
Example:
settime 1703001600
### Sync Time via NTP
Synchronize system time with an NTP server:
ethntp <time_server>
If no server is specified, uses pool.ntp.org by default:
ethntp
Example with custom server:
ethntp time.nist.gov