#summary Changelog and notes about CORE releases. Refer to the NamespaceKernels and CustomKernels pages for info on good/bad kernels and supported networking features. = 4.4 = CORE 4.4 was released on 9/DD/12. Packages are available for Ubuntu NN and Fedora NN. The high-level changes since version 4.3 are: *GUI* * real-time bandwidth plotting tool * added Wireshark and tshark right-click menu items * X,Y coordinates shown in the status bar * updated GUI attribute option to link messages for changing color/width/dash * added sample IPsec and VPN scenarios, how many nodes script * added jitter parameter to WLANs * renamed Experiment menu to Session menu, added session options * use 'key=value' configuration for services, EMANE models, WLAN models, etc. * save only service values that have been customized * copy service parameters from one customized service to another * right-click menu to start/stop/restart each service *EMANE* * EMANE 0.7.4 support * added support for EMANE CommEffect model and Comm Effect controller GUI * added support for EMANE Raw Transport when using RJ45 devices *Services* * improved service customization; allow a service to define custom Tcl tab * added vtysh.conf for Quagga service to support 'write mem' * support scheduled events and services that start N seconds after runtime * added UCARP service *Documentation* * converted the CORE manual to reStructuredText using Sphinx; added Python docs *General* * Python code reorganization * improved cored.py thread locking * merged xen branch into trunk * added an event queue to a session with notion of time zero * added UDP support to cored.py * use UDP by default in coresendmsg.py; added '-H' option to print examples * enter a bash shell by default when running vcmd with no arguments * fixes to distributed emulation entering runtime state * write 'nodes' file upon session startup * make session number and other attributes available in environment * support /etc/core/environment and ~/.core/environment files * added Ns2ScriptedMobility model to Python, removed from the GUI * namespace nodes mount a private /sys * fixed the following bugs:
80, 81, 84, 99, 104, 109, 110, 122, 124, 131, 133, 134, 135, 137, 140, 143, 144, 146, 147, 151, 154, 155 Known issues with 4.4: * GUI segfault under Ubuntu 11.10 with Tcl/Tk 8.5.10 (see 4.3 release notes). * Fedora 17 stock kernel 3.3.4-6.fc17 is missing the sch_tbf module, needed to properly set up the tc qdiscs; fix by updating to 3.5.3-1.fc17 or newer = 4.3 = CORE 4.3 was released on 3/7/12. Packages are available for Ubuntu 11.10/11.04/10.10/10.04 and Fedora 14/15/16. The high-level changes since version 4.2 are: * EMANE 0.7.2 and 0.7.3 support * hook scripts: customize actions at any of six different session states * Check Emulation Light (CEL) exception feedback system * added FTP and XORP services, and service validate commands * services can flag when customization is required * Python classes to support ns-3 simulation experiments * write state, node X,Y position, and servers to pycore session dir * removed over 9,000 lines of unused GUI code * performance monitoring script * batch mode improvements and --closebatch option * export session to EmulationScript XML files * basic range model moved from GUI to Python, supports 3D coordinates * improved WLAN dialog with tabs * added PhysicalNode class for joining real nodes with emulated networks * fixed the following bugs:
50, 75, 76, 79, 82, 83, 85, 86, 89, 90, 92, 94, 96, 98,
100, 112, 113, 116, 119, 120 Known issues with 4.3 * CORE will segfault under Ubuntu 11.10 with Tcl/Tk 8.5.10. There is a known bug in the tk-8.5.10 package, the workaround is to uninstall it and install tk-8.5.11 from [http://www.ubuntuupdates.org/tk8.5 here]; see [http://code.google.com/p/coreemu/issues/detail?id=90 bug #90] * the libimg-1.2.4_8 port under FreeBSD 9.0 causes icons in the CORE GUI to appear in black; there is an error showing gif files; see [http://code.google.com/p/coreemu/issues/detail?id=108 bug #108] * the vcore-4.3.zip (md5sum: b10758ede92db7fa8cf1fa6537d88fbb) had a problem where the UUID listed in the VirtualBox XML did not match the vmdk disk file. This was corrected on 3/26/12 (md5sum: 2282036b2cd6416159c70165e824c36d). An old vmdk disk file was used having CORE 4.2 instead of 4.3; this was corrected on 4/2/12 (md5sum: 5d85dc5da5f12f98206905ff772c48f3) * CORE 4.3 fails to build under Ubuntu 12.04 due to changes in the Linux 3.2.x include files; this was fixed in r429, so you can use the development snapshot when using a newer distro. = 4.2 = CORE 4.2 was released on 8/19/11. The high-level changes since version 4.1 are: * EMANE 0.7.1 support
support for Bypass model, Universal PHY, logging, realtime * configurable MAC addresses * control interfaces (backchannel between node and host) * service customization dialog improved (tabbed) * new testing scripts for MDR and EMANE performance testing * improved upgrading of old imn files * new coresendmsg.py utility (deprecates libcoreapi and coreapisend) * new security services, custom service becomes UserDefined * new services and Python scripting chapters in manual * fixes to distributed emulation, linking tunnels/RJ45s with WLANs/hubs/switches * fixed the following bugs:
18, 32, 34, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
52, 53, 55, 57, 58, 60, 62, 64, 65, 66, 68, 71, 72, 74 Known issues with 4.2: * the CORE 4.2 source tarball fails to build on Fedora.
Fix this by changing this line in configure.ac: `AC_SUBST(libev_CFLAGS,)` to `AC_SUBST(libev_CFLAGS, [-I/usr/include/libev])`
This was due to an attempt to remove pkg-config as a dependency, but has been fixed in SVN and newer. * Fedora 15 does not add the hostname to the 127.0.0.1 localhost line of the `/etc/hosts` file, which causes CORE to print an error: "couldn't open socket: can't assign requested address" when the execute button is pressed. * [http://code.google.com/p/coreemu/issues/detail?id=39 issue 39] OSPF hellos become synchronized after 1 hr of running * [http://code.google.com/p/coreemu/issues/detail?id=56 issue 56] wait for services shutdown * [http://code.google.com/p/coreemu/issues/detail?id=63 issue 63] EMANE events not restricted to localhost lo device = 4.1 = CORE 4.1 was released on 1/5/11. The high-level changes since version 4.0 are: * new icons for toolbars and nodes * node services introduced, node models deprecated * customizable node types * traffic flow editor with MGEN support * user configs moved from /etc/core/`*` to ~/.core/ * allocate addresses from custom IPv4/IPv6 prefixes * distributed emulation using GRE tunnels * FreeBSD 8.1 now uses cored.py * EMANE 0.6.4 support * numerous bugfixes Known issues with 4.1: * kernel hanging under Ubuntu 10.10 [http://code.google.com/p/coreemu/issues/detail?id=38 issue 38] * Tunnel node not implemented under FreeBSD [http://code.google.com/p/coreemu/issues/detail?id=37 issue 37] * OSPF hellos become synchronized after running emulation for about one hour [http://code.google.com/p/coreemu/issues/detail?id=39 issue 39] * CPU widget has been removed * Mobility tool has been removed * FreeBSD 8.1-RELEASE kernel warns "freed uma keg was not empty" and eventually crashes [http://code.google.com/p/coreemu/issues/detail?id=40 issue 40] * "no common network" error when reconnecting to a session having point-to-point links and trying to modify/delete these links * imn files made from older CORE versions not working in 4.1; see the [http://coreemu.blogspot.com/2010/11/node-types-and-services.html announcement about new CORE services] * `sample1.imn` hanging under FreeBSD 8.1 with Quagga MDR 1.0. On node7, the `vtysh -b` command is blocking waiting for ospf6d, which seems to be waiting for a lock = 4.0 = CORE 4.0 was released on 8/17/10. Here are some of the high-level changes since version 3.5: * Python framework with Linux network namespace (netns) support (Linux netns is now the primary supported platform) * ability to close the GUI and later reconnect to a running session (netns only) * EMANE integration (netns only) * new topology generators, host file generator * user-editable Observer Widgets * use of /etc/core instead of /usr/local/etc/core * various bugfixes Link to the [http://pf.itd.nrl.navy.mil/pipermail/core-users/2010-August/000209.html 4.0 release announcement]. = 3.5 = CORE 3.5 was released on 9/15/09. Link to the [http://pf.itd.nrl.navy.mil/pipermail/core-users/2009-September/000062.html 3.5 release announcement]. = 3.4 = CORE 3.4 was released on 6/23/09. Link to the [http://pf.itd.nrl.navy.mil/pipermail/core-users/2009-June/000019.html 3.4 release announcement]. = 3.3 = CORE 3.3 was released on 3/11/09. Link to the [http://pf.itd.nrl.navy.mil/pipermail/core-users/2009-March/000010.html 3.3 release announcement].