diff --git a/bin/send_packet.py b/bin/send_packet.py
new file mode 100644
index 0000000..23dc266
--- /dev/null
+++ b/bin/send_packet.py
@@ -0,0 +1,21 @@
+#!/usr/bin/python3
+
+import sys
+from scapy.all import *
+
+if __name__ == '__main__':
+    iface = sys.argv[1]
+
+    e = Ether(src="02:53:55:42:45:01",
+              dst='ff:ff:ff:ff:ff:ff')
+
+    i = IPv6(src = "2001:db8:42::1",
+             dst = "2001:db8::2")
+
+    t = TCP(dport=80, sport=random.randint(49152,65535))
+
+    d = "A"
+
+    pkg = e / i / t / d
+
+    sendp(pkg, iface=iface, verbose=True)
diff --git a/doc/plan.org b/doc/plan.org
index 53913ba..728e7e3 100644
--- a/doc/plan.org
+++ b/doc/plan.org
@@ -2899,7 +2899,7 @@ SimpleSumeSwitch(
 **** TODO mirroring ethernet
 ***** no packets seen on source interface
 **** TODO sending data to switch port 1
-***** figuring out which is port 1: nf0
+***** DONE figuring out which is port 1: nf0
 expected
 actual
 
@@ -2914,6 +2914,35 @@ actual
  < 0000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000040010000 >
  < 0000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000001010000 >
 
+***** TODO Testing packets: does not arrive on nf0
+4: nf0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
+    link/ether 02:53:55:4d:45:00 brd ff:ff:ff:ff:ff:ff
+    inet6 fe80::53:55ff:fe4d:4500/64 scope link
+       valid_lft forever preferred_lft forever
+5: nf1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
+    link/ether 02:53:55:4d:45:01 brd ff:ff:ff:ff:ff:ff
+    inet6 2001:db8::1/64 scope global
+       valid_lft forever preferred_lft forever
+    inet6 fe80::53:55ff:fe4d:4501/64 scope link
+       valid_lft forever preferred_lft forever
+6: nf2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
+    link/ether 02:53:55:4d:45:02 brd ff:ff:ff:ff:ff:ff
+7: nf3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
+    link/ether 02:53:55:4d:45:03 brd ff:ff:ff:ff:ff:ff
+
+root@rainbow:~# tcpdump -ni nf0
+tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
+listening on nf0, link-type EN10MB (Ethernet), capture size 262144 bytes
+
+[19:27] rainbow:~% sudo -i
+root@rainbow:~# tcpdump -ni nf1
+tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
+listening on nf1, link-type EN10MB (Ethernet), capture size 262144 bytes
+19:28:36.720431 IP6 2001:db8::1 > ff02::1:ff00:2: ICMP6, neighbor solicitation, who has 2001:db8::2, length 32
+19:28:37.725181 IP6 2001:db8::1 > ff02::1:ff00:2: ICMP6, neighbor solicitation, who has 2001:db8::2, length 32
+19:28:38.749195 IP6 2001:db8::1 > ff02::1:ff00:2: ICMP6, neighbor solicitation, who has 2001:db8::2, length 32
+
+
 *** TODO Create either HDL or PX for supporting payload checksum
     https://github.com/NetFPGA/P4-NetFPGA-public/issues/13
     https://github.com/NetFPGA/P4-NetFPGA-public/issues/13#issuecomment-490431016