thread safety for netdev_pltap and netdev_tunnel

[sliver-openvswitch.git] / INSTALL.RHEL

diff --git a/INSTALL.RHEL b/INSTALL.RHEL
index eaa2e7c..a698fae 100644 (file)
--- a/INSTALL.RHEL
+++ b/INSTALL.RHEL
@@ -101,6 +101,12 @@ RHEL.  On RHEL 5, the default RPM source directory is
     in this example: "kmod-openvswitch", "kmod-openvswitch-debug", and
     "kmod-openvswitch-kdump".
 
+A RHEL host has default firewall rules that prevent any Open vSwitch tunnel
+traffic from passing through. If a user configures Open vSwitch tunnels like
+GRE, VXLAN, LISP etc., they will either have to manually add iptables firewall
+rules to allow the tunnel traffic or add it through a startup script (Please
+refer to the "enable-protocol" command in the ovs-ctl(8) manpage).
+
 Red Hat Network Scripts Integration
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