[Bug 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to New. Thanks again!. ** Changed in: sun-java6 (Ubuntu) Status: Incomplete = Invalid -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 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 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
Is this symptom still reproducible in 8.10 beta? How about with openjdk-6? ** Changed in: sun-java6 (Ubuntu) Status: New = Incomplete -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 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 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
** Changed in: sun-java6 (Ubuntu) Sourcepackagename: None = sun-java6 -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 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 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
It looks like this is a Java bug rather than a kernel problem. TTL works correctly in the early-access version of Java 7. $ java -version java version 1.7.0-ea Java(TM) SE Runtime Environment (build 1.7.0-ea-b22) Java HotSpot(TM) Client VM (build 11.0-b08, mixed mode, sharing) For pre-Java7 applications that only need IPv4 try -Djava.net.preferIPv4Stack=true For applications that needs IPv4 and IPv6, iptables can be used to force the TTL iptables -t mangle --append POSTROUTING --out-interface eth+ --protocol udp -j TTL --ttl-set 64 -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
Tested on Solaris 10 and TTL is set correctly. Revised test code - multicast_test.c and MulticastTest.java Test results from Linux, Solaris and OS X in sample_results.txt Solaris sets IPv4 Multicast TTL when IPv6 Multicast Hops is set http://cvs.opensolaris.org/source/xref/kernel-sockets/ksocket/usr/src/uts/common/inet/udp/udp.c#3785 Linux sets them separately http://lxr.linux.no/source/net/ipv6/ipv6_sockglue.c#L531 v6 http://lxr.linux.no/source/net/ipv4/ip_sockglue.c#L549 v4 ** Attachment added: sample_results.txt http://launchpadlibrarian.net/7907919/sample_results.txt -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
** Attachment added: MulticastTest.java http://launchpadlibrarian.net/7907920/MulticastTest.java -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
** Attachment added: multicast_test.c http://launchpadlibrarian.net/7907922/multicast_test.c -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
** Attachment added: MulticastTest.java http://librarian.launchpad.net/7548756/MulticastTest.java -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 112257] Re: TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket
** Attachment added: multicast_test.c http://librarian.launchpad.net/7548758/multicast_test.c -- TTL ignored when sending UDP Datagram to IPv4 address via IPv6 socket https://bugs.launchpad.net/bugs/112257 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
