1_setup

Using scapy to send an IP packet to 10.23.40.210 (computenode) from 10.23.40.42 (raspberry pi) both on the same subnet with just a switch in between.

10.23.40.42[ue0] --> switch --> [ixgbe0]10.23.40.210

2_scapy

# Send an IPv4 packet with version set to 6 to TCP port 80
>>> IP(dst='10.23.40.210', version=6)
<IP  version=6 dst=10.23.40.210 |>
>>> TCP(dport=80, flags="S")
<TCP  dport=http flags=S |>
>>> send(IP(dst='10.23.40.210', version=6)/TCP(dport=80, flags="S"))
WARNING: Mac address to reach destination not found. Using broadcast.
.
Sent 1 packets.

3_netstat

[root@carbon ~]# netstat -s | grep Hdr
        ipInReceives        =   246     ipInHdrErrors       =     1
        ipv6InReceives      = 13451     ipv6InHdrErrors     =     0
... sending packet ...
[root@carbon ~]# snoop -d ixgbe0 'host 10.23.40.210'
Using device ixgbe0 (promiscuous mode)
VLAN#40: 4006:f5a5:a17:282a:a17:28d2:14:50 -> ::5002:2000:2a55:0 IPv6  S=4006:f5a5:a17:282a:a17:28d2:14:50 D=::5002:2000:2a55:0 LEN=1 HOPS=0 CLASS=0x0 FLOW=0x28
[root@carbon ~]# netstat -s | grep Hdr
        ipInReceives        =   247     ipInHdrErrors       =     2
        ipv6InReceives      = 13506     ipv6InHdrErrors     =     0

4_attempt2

# scapy
>>> e=Ether(type=0x86dd, dst="0:25:90:f1:55:6")
>>> i=IP(dst='10.23.40.210')
>>> t=TCP(dport=80, flags="S")
>>> e,i,t
(<Ether  dst=0:25:90:f1:55:6 type=0x86dd |>, <IP  dst=10.23.40.210 |>, <TCP  dport=http flags=S |>)
>>> sendp(e/i/t)
.
Sent 1 packets.

# snoop on computenode
nothing arrives