Doing this is not the most obvious. The trick is to give the device a static private IP address and another static private IP address of the Ethernet adapter you plug it into.
Instead of using a LAN port, where your Ethernet adapter normally receives an address via DHCP, connect via WAN port.
Connect the Mac to the Time Capsule
Connect the network cable between the LAN port and your Mac. If your Mac does not have an ethernet port, you need to use an adapter.
Then, open the Airport-tools on your Mac. About Time Capsule does not show up in the GUI or when you click on other Wi-Fi devices need a factory reset. Apple has a good guide for this.
When the Time Capsule appears, select it and click Edit. Here you can choose a static IP address to make it accessible via your Mac.
The Internet traffic, select Static of Connect via . in IPv4 addresses, subnet mask, and Router address, write the addresses below in respective order:
- 192.168 .200.2
then go to Wireless tab and select of in Network mode. Navigate then to Network tab and select DHCP and NAT from the Router mode. Click through to Hard tab and tick Share disks over the WAN. Click the update and wait for a reboot.
When the reboot is complete, change the port from the LAN to Wan on your Time Capsule. On the Mac, open Network of System Settings and if the lock at the bottom right corner is locked, click it and type in the computer's administrator password , which is probably it for your main user.
Select your Thunderbolt adapter (or other) in the list on the left. In the Configuration section, set the following:
- Configure IPv4: Manually
- IPv4 address: 192.168.200.2
- Subnet Mask: 255.255.255.0
- router: Blank
Click perform and now you should be able to mount your time Capsule in the Finder as if it were the network drive anywhere.