Hey, i'm trying to set up my Airport Express as a separate network. Right now it is connected to my WiFi Modem, but anyone connected to the WiFi on the modem can access anything connected on the Airport network.
Is there any way to make the Airport inaccessible to people connected to the Wifi on my ISP modem.
Thanks
iMac, OS X El Capitan (10.11.1)
On the iMac.......
Open AirPort Utility (Finder > Applications > Utilities > AirPort Utility)
Click on the picture of the AirPort Express
Click Edit in the smaller window that appears
Click the Network tab at the top of the next window
Change the setting for Router Mode to read DHCP and NAT
Click Update at the lower right of the window and allow a full minute for the AirPort to restart
Power off both the "main" router and the AirPort Express
Wait a minute
Power up the main router and let it run a full minute
Then, power up the AirPort Express
The indicator light on the AirPort Express will be blinking amber slowly, but do not worry about this at this time
Check the AirPort Express and other network to verify that devices on one network cannot "see" devices on the other network
Keep an eye on things for a few hours. If all seems, to be well, you can tell the AirPort Express to ignore the Double NAT error that it is complaining about, so that it will display a green light
Double NAT can cause slow growing, no browsing, difficult connecting from a remote location and other things,but you might be able to get away with the Double NAT on a simple network. Try it and see how it works for you.
On the iMac.......
Open AirPort Utility (Finder > Applications > Utilities > AirPort Utility)
Click on the picture of the AirPort Express
Click Edit in the smaller window that appears
Click the Network tab at the top of the next window
Change the setting for Router Mode to read DHCP and NAT
Click Update at the lower right of the window and allow a full minute for the AirPort to restart
Power off both the "main" router and the AirPort Express
Wait a minute
Power up the main router and let it run a full minute
Then, power up the AirPort Express
The indicator light on the AirPort Express will be blinking amber slowly, but do not worry about this at this time
Check the AirPort Express and other network to verify that devices on one network cannot "see" devices on the other network
Keep an eye on things for a few hours. If all seems, to be well, you can tell the AirPort Express to ignore the Double NAT error that it is complaining about, so that it will display a green light
Double NAT can cause slow growing, no browsing, difficult connecting from a remote location and other things,but you might be able to get away with the Double NAT on a simple network. Try it and see how it works for you.
Thanks Bob, this worked but dropped my connection from 88 Mb/s to 43 Mb/s and I use remote connection so don't think this will work for me. Is this the only way to get this done?
Yes it is, unless you want to call in an IT professional to try to set up custom software designed for your needs. Even running a Double NAT....if it worked well for you.....is not very good "security" at all.
So I got my ISP to add a second IP address and I am now getting optimal speeds. What do you mean as in it is not very good security? Have I just made myself venerable to people getting on my network?
Thanks
What do you mean as in it is not very good security?
I meant exactly what I said above referring to the Double NAT setup. Anyone who knows anything about Apple routers would have no trouble at all finding and accessing devices on the "other" network. A casual user who does not understand anything about IP addresses would not be able to access the "other" network.
The Double NAT setup would not pass any type of corporate security tests, but might be OK for casual use with casual users.
Well I guess it's a good thing I'm not running a large corporation off my Airport Express home network now isn't it.
Thanks for the pompous response though.
Setting AirPort as separate network
