This bug report was marked as Incomplete and has not had any updated
comments for quite some time. As a result this bug is being closed.
Please reopen if this is still an issue in the current Ubuntu release
http://www.ubuntu.com/getubuntu/download . Also, please be sure to
provide any requested in
This issue doesn't appear in 9.10
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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This bug report was marked as Triaged a while ago but has not had any
updated comments for quite some time. Please let us know if this issue
remains in the current Ubuntu release,
http://www.ubuntu.com/getubuntu/download . If the issue remains, click
on the current status under the Status column
** Tags added: ipv6
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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The issue is between host and vmware boxesnot guest to guest.
There is a wireshark attached and you can see the boxes are sending
packets much larger than the interfaces MTU (15914 bytes)
See ipv6-filtered.pcap
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
Y
clerum wrote:
> Also the boxes in question are LTS boxes on vmware so moving to 8.10
> isn't an option at this point.
That's correct. Since 8.04 is LTS, one should release a fix for it.
What is observed, however, was an advertised MSS of 1440 by TCP
not anything larger. Is your communication happe
Also the boxes in question are LTS boxes on vmware so moving to 8.10
isn't an option at this point.
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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Ronald, are you seeing the same large packet MTU's?
r...@hardy:~# ip -6 r s default
default via 2607:f3d0:0:4::1 dev eth0 metric 1 expires -1183414sec mtu 1500
advmss 1440 hoplimit 4294967295
What appears to be happening to me is that programs (scp, ftp) are using the
MTU from Lo0 for ipv6 p
Clerum, for me it works under 8.10 (Kubuntu) actually.
The problem exists only after bringing up the interface, e.g., ifdown eth0
followed by
ifup eth0 results in ip -6 r s default
default via xyz dev eth0 proto kernel metric 1024 expires 527sec mtu 1280
advmss 1440 hoplimit 64
but removing t
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => IPv6 Task Force (ipv6)
** Changed in: linux (Ubuntu)
Assignee: IPv6 Task Force (ipv6) => (unassigned)
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
You received this bug notification because you ar
While I cannot assist with coding a fix I can help with responsive to
testing.
Please let me know if you need further debugs, or want me to try a
patch.
--
TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
You received this bug notification because you are a member of U
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
Assignee: (unassigned) => Ubuntu Kernel Team (ubuntu-kernel-team)
Status: New => Triaged
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
You received this bug notification because you are a
Still exists under the full release of IBEX
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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** Changed in: linux (Ubuntu)
Status: Incomplete => New
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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[EMAIL PROTECTED]:~# ip -6 r s default
default via x:x:0:2::1 dev eth0 metric 1 mtu 1500 advmss 1440 hoplimit
4294967295
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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Acutally under IBEX it appears to be even larger. the packets go up to
15914 in sizeon a 1500 byte MTU link
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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Tested under ibex beta. Same issue
[EMAIL PROTECTED]:~# uname -a
Linux ibex 2.6.27-7-server #1 SMP Wed Oct 22 02:10:40 UTC 2008 x86_64 GNU/Linux
[EMAIL PROTECTED]:~# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:0c:29:4d:1e:0c
inet addr:208.85.x.x Bcast:208.85.x.x Mask:255.255.2
Seeing same/similar issue. While doing SSH or SCP to a Hardy x64 install
(Linux hardy 2.6.24-21-server #1 SMP Mon Aug 25 17:28:54 UTC 2008 x86_64
GNU/Linux)
What I am seeing via a TCP dump on the server is that it is sending
packets up to 2954 bytes. The MTU on the interface is standard and set
at
The Intrepid Ibex 8.10 Beta release was most recently announced -
http://www.ubuntu.com/testing/intrepid/beta . It contains the 2.6.27
Ubuntu kernel. It would be great if you could test and verify if this
is still an issue. The status is being set to Incomplete until we
receive further feedback.
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the
upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would
appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
There are one of two ways you should be able to test:
1) If you are comfortable
** Attachment added: "wireshark text dump showing that SYN uses an MSS of 1440"
http://launchpadlibrarian.net/16523359/tools.ietf.org.doesnotwork.txt
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TCP uses wrong MTU/MSS size for IPv6
https://bugs.launchpad.net/bugs/254622
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