[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
Still exists under the full release of IBEX -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
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 1500 bytes. [EMAIL PROTECTED]:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:0c:29:f6:ae:12 inet addr:208.85.x.x Bcast:208.85.x.x Mask:255.255.255.240 inet6 addr: x:x:0:4::54/64 Scope:Global inet6 addr: fe80::20c:29ff:fef6:ae12/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:505026 errors:0 dropped:0 overruns:0 frame:0 TX packets:434987 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:243051539 (231.7 MB) TX bytes:285760463 (272.5 MB) Base address:0x1070 Memory:f482-f484 ** Attachment added: "ipv6-filtered.pcap" http://launchpadlibrarian.net/18826916/ipv6-filtered.pcap -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
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:255.255.255.224 inet6 addr: x:x:0:2::14/64 Scope:Global inet6 addr: fe80::20c:29ff:fe4d:1e0c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4824 errors:0 dropped:0 overruns:0 frame:0 TX packets:14772 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:485532 (485.5 KB) TX bytes:18416410 (18.4 MB) -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
Acutally under IBEX it appears to be even larger. the packets go up to 15914 in sizeon a 1500 byte MTU link -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
[EMAIL PROTECTED]:~# ip -6 r s default default via x:x:0:2::1 dev eth0 metric 1 mtu 1500 advmss 1440 hoplimit 4294967295 -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
** Changed in: linux (Ubuntu) Status: Incomplete => New -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
** Changed in: linux (Ubuntu) Assignee: (unassigned) => IPv6 Task Force (ipv6) ** Changed in: linux (Ubuntu) Assignee: IPv6 Task Force (ipv6) => (unassigned) -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
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 packets. Thus I get packets with sizes much larger then MTU loLink encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1070 errors:0 dropped:0 overruns:0 frame:0 TX packets:1070 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:79968 (78.0 KB) TX bytes:79968 (78.0 KB) -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
Also the boxes in question are LTS boxes on vmware so moving to 8.10 isn't an option at this point. -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
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 -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 313218] Re: IPV6 causes slow internet access
I think that this may be related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/254622 What I'm seeing on the wireshark captures is that even between two systems on the same LAN connectivity between two IPv6 addresses will be much slower due to the packets being sent with sizes much larger than the interface MTU. In cases where the switch MTU is smaller than the size sent the packets will be dropped and thus connections suffer. -- IPV6 causes slow internet access https://bugs.launchpad.net/bugs/313218 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 254622] Re: TCP uses wrong MTU/MSS size for IPv6
This issue doesn't appear in 9.10 -- 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 Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1930541] Re: Maven 3.6.3-1 fails to run with OpenJDK 16
This is a blocker for using JDK 16 (release 16 March 2021) along with Maven on 20.04. This will also be a blocker for the next LTS Java 17 release in September 2021 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1930541 Title: Maven 3.6.3-1 fails to run with OpenJDK 16 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/maven/+bug/1930541/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1930541] Re: Maven 3.6.3-1 fails to run with OpenJDK 16
Is there any assistance I can provide to move this forward? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1930541 Title: Maven 3.6.3-1 fails to run with OpenJDK 16 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/maven/+bug/1930541/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
