Path mtu discovery mac os x

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Contents:
  1. Max MTU value different on OSX and Windows, which to believe? Trying to optimize IPSec VPN tunnel
  2. How to Change MTU Size on Mac by Command Line
  3. Your Answer
  4. CellStream - IPv4/IPv6 Path MTU (PMTU) Discovery Demystified

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Max MTU value different on OSX and Windows, which to believe? Trying to optimize IPSec VPN tunnel

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I'm on OS X Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 7 years, 8 months ago. Active 7 years, 1 month ago.

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How to Change MTU Size on Mac by Command Line

Maybe you could create a bunch of virtual interfaces with individual MTU's, and give them IP's on different networks, so routing would take care of picking the right interface, and the different MTU in the process? Just an idea Good Person 6 6 silver badges 18 18 bronze badges. If you need to change the MTU size on a Mac, you can do so through the command line, as well as through the System Preference panel. To see the current MTU size, use the following networksetup flag, pointing it at the network interface like so:. Enjoy this tip? Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox!

Your Answer

Enter your email address below:. Mac pro Sierra Is anybody else getting this error? My results of network setup … en0 also gave me even though in network config I chose custom and chose With Yosemite A great resolution is changing the MTU size. Well the MTU was a improvement, but I can say from some experience that using a even number like came up with even better results. For the average Mac user, indeed the GUI is simpler.


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Terminal instead returned a long list of acceptable networksetup commands. Since this was an advanced tip, this may be common knowledge to advanced users, but others may want to be aware that they might need their device name.

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CellStream - IPv4/IPv6 Path MTU (PMTU) Discovery Demystified

The first terminal command in the example is missing the interface name part for example en0, for example it should be networksetup -getMTU en0 in case its a macBook Air on WiFi but this en0 might differ based what port you connected to, the best way to know the ports name is go to the network utility and hit info so you can see available interfaces names. I have to do this constantly in Windows to maintain a VPN connection with work.

Good information to know, should I ever need it….

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How Verizon and a BGP Optimizer Knocked Large Parts of the Internet Offline Today

Reproduction without explicit permission is prohibited. Mainuddin says:. January 27, at am. Kevin says:. July 7, at am.