.

tmcast.py

@@ -66,9 +66,16 @@ def rxloop(ctx, sk):
 
 
 def main():
-    G = (group4, port)
     action = sys.argv[1]
 
+    G4 = (group4, port)
+    G6 = (group6, port)
+    G = None
+    if "4" in action:
+        G = G4
+    if "6" in action:
+        G = G6
+
     wg = sync.WorkGroup(context.background())
     if "tx" in action:
         sktx = mjoin_tx(*G)

topo-B-A-C.sh

@@ -17,7 +17,7 @@ rm -f A B C
 touch A B C
 PID=$$
 
-
+# B-br0-A
 unshare --net=B -- ip link set lo up
 nsenter --net=B -- ip link add b1 type veth peer B1
 nsenter --net=B -- ip link set B1 netns $PID
@@ -35,6 +35,8 @@ ip link set B1 master br0
 ip link set A1 master br0
 ip link set br0 up
 
+# A-br1-C
+
 
 nsenter --net=B -- ip addr add 10.0.0.1/24 dev b1
 nsenter --net=A -- ip addr add 10.0.0.2/24 dev a1
@@ -42,25 +44,9 @@ nsenter --net=A -- ip addr add 10.0.0.2/24 dev a1
 nsenter --net=B -- ip route add 224.0.0.0/4 dev b1
 
 nsenter --net=A -- ip route add 224.0.0.0/4 dev a1
+# XXX append route to a2
 
 
-
+# open terminals in A B C for play
 nsenter --net=B -- xfce4-terminal --title=B &
 nsenter --net=A -- xfce4-terminal --title=A &
-
-
-
-
-exit 0
-
-ip link add br0 type bridge     # vlan_filtering 1 mcast_snooping 0
-ip link add a1 type veth peer b1
-ip link set b1 master br0
-ip link set a1 up
-ip link set b1 up
-ip link set br0 up
-
-unshare --net=B -- ip link set lo up
-nsenter --net=B -- ip link add B1 type veth peer B
-nsenter --net=B -- ip link set B netns $PID
-ip link set B up