Mention that /dev/urandom is needed.

[sliver-openvswitch.git] / INSTALL.Linux

diff --git a/INSTALL.Linux b/INSTALL.Linux
index 177a9cd..014e3ac 100644 (file)
--- a/INSTALL.Linux
+++ b/INSTALL.Linux
@@ -48,6 +48,10 @@ INSTALL.userspace for more information.
       and NET_ACT_POLICE, either built-in or as modules.
       (NET_CLS_POLICE is obsolete and not needed.)
 
+      If GRE tunneling is being used it is recommended that the kernel
+      be compiled with IPv6 support (CONFIG_IPV6).  This allows for
+      special handling (such as path MTU discovery) of IPv6 packets.
+
     - To build a kernel module, you need the same version of GCC that
       was used to build that kernel.
 
@@ -69,6 +73,11 @@ you will also need the following software:
 
     - Python 2.x, for x >= 4.
 
+If you modify the ovsdbmonitor tool, then you will also need the
+following:
+
+    - pyuic4 from PyQt4 (http://www.riverbankcomputing.co.uk).
+
 Installation Requirements
 -------------------------
 
@@ -91,6 +100,24 @@ following software:
       if it is installed in a different location, then some Open
       vSwitch log messages will not be as detailed.
 
+You should ensure that /dev/urandom exists.
+
+To run the ovsdmonitor tool, the machine must also have the following
+software:
+
+    - Python 2.x, for x >= 4.
+
+    - Python Twisted Conch.
+
+    - Python JSON.
+
+    - PySide or PyQt4.
+
+    - Python Zope interface module.
+
+(On Debian "lenny" the above can be installed with "apt-get install
+python-json python-qt4 python-zopeinterface python-twisted-conch".)
+
 Building and Installing Open vSwitch for Linux
 ==============================================