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-rw-r--r--smcroute.conf.example11
1 files changed, 9 insertions, 2 deletions
diff --git a/smcroute.conf.example b/smcroute.conf.example
index b587fc706c39..d8b8d73cd54c 100644
--- a/smcroute.conf.example
+++ b/smcroute.conf.example
@@ -11,14 +11,21 @@
#
# Syntax:
# mgroup from IFNAME group MCGROUP
-# mroute from IFNAME source ADDRESS group MCGROUP to IFNAME [IFNAME ...]
+# mroute from IFNAME [source ADDRESS] group MCGROUP to IFNAME [IFNAME ...]
#
# The following example instructs the kernel to join the multicast
# group 225.1.2.3 on interface eth0. Followed by setting up an
# mroute of the same multicast stream, but from the explicit sender
# 192.168.1.42 on the eth0 network and forward to eth1 and eth2.
#
-
# mgroup from eth0 group 225.1.2.3
# mroute from eth0 group 225.1.2.3 source 192.168.1.42 to eth1 eth2
+# Here we allow routing of multicast to group 225.3.2.1 from ANY
+# source coming in from interface eth0 and forward to eth1 and eth2.
+# NOTE: Routing from ANY source is currently only available for IPv4
+# multicast.
+#
+# mgroup from eth0 group 225.3.2.1
+# mroute from eth0 group 225.3.2.1 to eth1 eth2
+