Questions tagged [mtu]
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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Issue with finding optimal MTU size using PowerShell script in Win 11
I tried the ping command to get the MTU size using PowerShell script but it does not give me accurate reading as it show it can not find optimal size within given range. However, manually putting it ...
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I am trying to change my MTU but it is not working out as expected
I am trying to change my MTU to "1460" with the tag:
netsh int ipv4 set subinterface “WiFi” mtu=1500 store=persistent
But it says the error:
"The filename, directory name, or volume ...
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Limiting the MTU for one application without Administrator permissions on Windows
I do have an Java Console application that is sending packets via the internet connection.
The application is running on a Windows 10 machine, with Oracle JDK 11/17.
I need to adapt the MTU size that ...
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i can connect but load time is long
I am trying to connect to virtual servers through VPN router(RTX1210) and L3SW(AX3630-s) all settings are the same as previous VPN router(RTX1200) but routers mtu was set at 1280 [Connection timed out]...
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How can I set up 6to4 on MikroTik and configure MTU to fix connection failures and update guix?
I set up a 6to4 SIT tunnel on MikroTik following the example for Hurricane Electric in the MikroTik help files.
It worked, but the connection to some resources was painstakingly slow and often timed ...
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Minecraft Server over PPTP: Client suddenly disconnects
For the sake of sports experience, in order to have a public IP address on the home physical server, I rented a VDS in the nearest city with minimal characteristics. I then set up pptpd on that VDS. ...
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How iptables "--clamp-mss-to-pmtu" calculates PMTU?
I have seen in many places this iptables rule iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu to deal with Path MTU Discovery issues.
From my understanding, PMTU may ...
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Unable to ping device with Jumbo Packets (MTU 9000) - Default ping error message, not because of MTU [duplicate]
@Admins: the question linked addresses a different problem. My issue is specific to the fact that ping doesn't return a MTU too small message but a general fail message, pointing to a problem ...
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Change MTU size using netsh interface ipv4 command
I want to change the MTU size on a VPN network interface but I can't change as it says "element not found", is the command incorrect?
Type netsh interface ipv4 show subinterface
Type netsh ...
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What's the best way to tune MTU given different performance against different sites?
I'm running a Wireguard VPN that seems to be handling differences in MTU poorly. Interacting with the Wireguard server from a Mac running 1500 MTU, VPN performance looks something like the following:
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Is an MTU of 1500 indicating incorrect configuration in my home network and/or ISP setup?
I am trying to diagnose spurious UDP connection problems on Windows 10, yet unknown whether rooted in local computer, home network or beyond.
I found log lines, generated by a AVM FRITZ!Box brand DSL ...
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How to increase MTU to 1500 on GRE tunnel
For context
141.95.xxx.88 = OVH node
5.9.xxx.130 = Hetzner node
164.132.xxx.0/28 = OVH IP block (GRE to Hetzner)
Hetzner GRE Setup:
ip tunnel add gre2 mode gre remote 141.95.xxx.88 local 5.9.xxx.130 ...
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Why is the TCP MSS (Maximum Segment Size) 1460 bytes?
I'd like to know why the MSS value in the TCP header is 1460 bytes.
I know that the MTU for Ethernet networks is 1500 bytes, that the IP header is 20 bytes and the TCP header is 20 bytes.
But still, ...
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SSH won't set don't fragment bit
I'm trying to send a file from an host through a gateway with an MTU of 552,using scp.
I expect the connection to halt since ssh should send packets with DF bit flag set, and the current MTU is too ...
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Manipulating MTU size in IPTables with mangle for use with OpenVPN
I am looking for any and all pointers in regards to modifying or resetting MTU size with the mangle table in iptables. Specifically where in the iptables flow is it more efficient to modify MTU to ...
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