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multipath-tcp / mptcp

⚠️⚠️⚠️ Deprecated 🚫 Out-of-tree Linux Kernel implementation of MultiPath TCP. 👉 Use https://github.com/multipath-tcp/mptcp_net-next repo instead ⚠️⚠️⚠️
https://github.com/multipath-tcp/mptcp_net-next
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MPTCP installed but amiusingmptcp.de is saying it is not #511

Closed sanjitbarik closed 1 year ago

sanjitbarik commented 1 year ago 
          It is a little modifed one, tomorrow I will test the pure code from your website.

You are absolutely right, I have checked the protocol in another network and "http://amiusingmptcp.de/" returning "Yes".

I will find the middleboxes blocking the protocol.

Thank you so much for your time, patience, and detailed answers

Originally posted by @rezapoorzare1 in https://github.com/multipath-tcp/mptcp/issues/484#issuecomment-1118698827

sanjitbarik commented 1 year ago

Dear sir I have a same same problem.Please inform what have done for solve the issue

matttbe commented 1 year ago

@sanjitbarik please explain your issue, I have no idea what's your issue.

matttbe commented 1 year ago

I installed Ubuntu 20.04 and know I am in the kernel.There is problem : The command "sudo dmesg | grep MPTCP" returns: [ 0.372344] MPTCP: Stable release v0.95.2 sysctl net.mptcp.mptcp_enabled| returns: net.mptcp.mptcp_enabled = 1

"sysctl -w net.mptcp.mptcp_path_manager=fullmesh" returns: net.mptcp.mptcp_path_manager = fullmesh sysctl net.ipv4.tcp_congestion_control it returns cubic everything looks good, but when I connect to "http://amiusingmptcp.de/". it says no. Please give me solution thanks.

It is possible a middlebox somewhere between you and the server is blocking MPTCP. Most of the time, it is due to a wrong configuration somewhere, either on your side or on the operator' side. You can use tcpdump to see if MPTCP packets are going out but if yes, you will need a tool like tracebox to identify where MPTCP options are stripped, see: https://multipath-tcp.org/pmwiki.php/Users/Tools (at the end)

docker run -it --rm matttbe/tracebox:latest -p 'IP/tcp{dst=443}/MPCAPABLE' www.multipath-tcp.org
sanjitbarik commented 1 year ago

Hi it works in different network. thanks