Connecting to a Raspberry Pi Using Mac's "Internet Sharing" (For External Connections)
2014-06-22 22:08 (10 years ago)
ytyng
Recently, I had an opportunity to handle (practice with) a Raspberry Pi with an acquaintance in a location without well-equipped facilities, outside of home or the office.
By using the "Internet Sharing" feature on a Mac, you can set up your equipment with minimal gear.
Normally, to SSH into a Raspberry Pi from a PC, both the Raspberry Pi and the PC need to be on the same LAN.
They obtain IP addresses from a DHCP server, such as the one on your internet router, and communicate within that network.
However, carrying around an internet router can be a bit cumbersome.
The Mac's "Internet Sharing" feature also runs a DHCP server, so it can be used as a substitute for an internet router.
If you have a Mac equipped with both wired Ethernet and wireless capabilities, you can connect to the Raspberry Pi either via wired or wireless connection.
1. Setting Up the Raspberry Pi (Wired)
In the default state with Raspbian installed, the Raspberry Pi is set to obtain an IP address from DHCP for a wired connection, so no additional configuration is needed.2. Setting Up the Raspberry Pi (Wireless)
When connecting the Raspberry Pi via wireless,
Raspberry Pi Wireless LAN Setup Notes - Ag Blog
this site is extremely helpful.
Beforehand, decide on the SSID and passphrase you plan to set up on the Mac.
# sudo wpa_passphrase ESSID pass | sudo tee -a /etc/wpa_supplicant/wpa_supplicant.conf
Run this command to append to the wpa_supplicant configuration.
You can have multiple network sections, so it is a good idea to set it up like this:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
# For using Mac's "Internet Sharing"
network={
ssid="ESSID"
#psk="pass"
psk=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
proto=RSN
pairwise=CCMP
group=CCMP
}
# For connecting to the home network
network={
ssid="ESSID-HOME"
#psk="pass"
psk=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
proto=WPA
pairwise=CCMP
group=CCMP
}
When connecting to the Mac's wireless LAN, configure it like this:
proto=RSN pairwise=CCMP group=CCMP(This setting is for connecting to "WPA2 Personal")
3. Setting Up the Mac
Apple Menu → System Preferences → Sharing
Click on "Internet Sharing" within this menu.
Connect the iPhone 5s and use it as a modem via USB.
Set "Share your connection from" to "iPhone USB".
For "To computers using", check both "Ethernet" (if available) and "Wi-Fi".
Click on Wi-Fi Options and set the "Network Name" and "Password".
4. Connecting and Restarting the Raspberry Pi
For a wired connection, connect the Mac's wired port to the Raspberry Pi.
You can connect directly with a straight cable, or if connecting multiple devices, use a small LAN hub.
For wireless, simply restart the Raspberry Pi with a wireless LAN dongle attached, and it should automatically connect to the Mac.
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