forward traffic from a physical interface to docker 0 -> to docker container eth0

I have an Ubuntu 16.04 desktop with 2 interface cards. I am trying to route traffic from Windows machine to Ubuntu machine’s enp6s0 interface. I have connected the Windows machine and Ubuntu 16.04 with an Ethernet cable.

From Ubuntu machine’s physical interface, I want to forward the same traffic to docker0(172.17.0.1) and to the docker container(172.17.0.2).

With my current setup, * I have the docker containers with –network bridge so that it has 2 interfaces. and eth1 is configured according to ns3 project ip address.

root@c246ffcf5054:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 02:42:ac:11:00:02  
          inet addr:172.17.0.2  Bcast:172.17.255.255  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:107 errors:0 dropped:0 overruns:0 frame:0
          TX packets:23 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:12491 (12.4 KB)  TX bytes:1802 (1.8 KB)

eth1      Link encap:Ethernet  HWaddr 12:34:88:5d:61:bd  
          inet addr:10.0.0.2  Bcast:0.0.0.0  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1066938 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1432799 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1169075120 (1.1 GB)  TX bytes:2534973873 (2.5 GB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:151 errors:0 dropped:0 overruns:0 frame:0
          TX packets:151 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:12768 (12.7 KB)  TX bytes:12768 (12.7 KB)

Ubuntu machine has the below ip addresses.

docker0   Link encap:Ethernet  HWaddr 02:42:fd:06:5f:68  
          inet addr:172.17.0.1  Bcast:172.17.255.255  Mask:255.255.0.0
          inet6 addr: fe80::42:fdff:fe06:5f68/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:25096 errors:0 dropped:0 overruns:0 frame:0
          TX packets:47902 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1342650 (1.3 MB)  TX bytes:76227846 (76.2 MB)

enp5s0    Link encap:Ethernet  HWaddr 68:05:ca:26:6f:0a  
          inet addr:192.168.0.16  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: 2601:641:481:2020:6a05:caff:fe26:6f0a/64 Scope:Global
          inet6 addr: fe80::6a05:caff:fe26:6f0a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:193989 errors:0 dropped:0 overruns:0 frame:0
          TX packets:109541 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:216544575 (216.5 MB)  TX bytes:12131093 (12.1 MB)
          Interrupt:16 Memory:fbce0000-fbd00000 

enp6s0    Link encap:Ethernet  HWaddr f4:6d:04:1a:76:40  
          inet addr:192.168.100.3  Bcast:192.168.100.255  Mask:255.255.255.0
          inet6 addr: fe80::f66d:4ff:fe1a:7640/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10064 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4933 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:798388 (798.3 KB)  TX bytes:504172 (504.1 KB)
          Interrupt:18 

I am able to ping Windows machine from Ubuntu machine and docker container. I am able to ping docker 0 and docker containers from Windows machine using the below iptable. But when I run tcpdump in the docker conatiner there is not traffic. Can please somebody help me with this? Thank you!

iptables -t nat -I PREROUTING -i enp6s0 -p tcp -j DNAT --to-destination 172.17.0.1