MTU (Maximum Transfer Unit) refers to the largest size of the datagram that a layer of a communication protocol can transmit.

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Timeout while testing MTU via ping

I tested it on Windows 7 and Ubuntu 11.10 with MTU size 1500B. IP packet - 20B ICMP packet - 8B 1500 - 28 = 1472 So maximum packet that I could ping without fragmentation is 1472B, and this is ...
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254 views

Why might my HP C7200 printer appear to have an MTU of 1498?

On my wireless network, I can tracepath to a mac using MTU of 1500 on Ubuntu linux 12.04. (Mac MTU is set to 1470 for some reason, but reply frames are not that big so this does not matter) When I ...
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Throughput decreases after MTU 5000

I am trying to test throughput between two computers directly connected through 1 GbE and testing with iperf. I am getting a throughput around 980Mbps when MTU is between 5000 and 5050, however it ...
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208 views

No computer on network can play YouTube videos

I have a Netgear FVG318v1 router and all computers on the network cannot play any YouTube videos. I have tried with 3 computers, PC and Mac with all different kinds of browsers. All I get from YouTube ...
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2k views

how to set MTU value in windows xp

I wish to change the MTU value on my pc (XP) i tried some registry mathods- added some values in several places: (this one is a windows tutorial) ...
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What is the most MTU efficient way of creating a network tunnel?

I am currently using SSH tunneling to connect to the internet via a remote computer using the -D ssh argument. I've recently run across a problem with this solution -- the SSH protocol decreases the ...
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How will affect MTU through different hosts?

I had issues with my new ISP, and I found that it has something to do with the MTU. This is the actual setup: Client, Win7 with jumbo frames, 9000 MTU Linux box: on the local side, a network card ...
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26 views

Set an ipv6-specific MTU

I have a router which has ipv6 connectivity through a tunneling mechanism. The router announces a prefix in the LAN, and clients get native ipv6 connectivity on their point of view. The MTU of the LAN ...
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859 views

Changing MTU on Windows 8

have tried several times to change the mtu on my windows 8 hp laptop, have used the method shown here- ...
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157 views

Why does postfix take so long time to receive emails from gmail?

How can I manually check for an email from the command line? How can I force postfix to receive/update emails? The email from gmail takes 8 minutes till it will be received by postfix. How can I ...
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47 views

What is the relation between interface MTU and received packets length?

Let's say that two hosts A and B communicate via an Ethernet medium. Host A has MTU 1500 and host B has MTU 1300. If A is sending a packet with length 1500, will host B receive it?
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Unable to remotely connect to a machine after succesfull VPN login

I'm unable to remotely connect to a virtual machine even after successfully logging into VPN through my broadband connection. Weird it is, I'm able to remotely connect to that machine after VPN log in ...