[Starlingx-discuss] How to access Virtualized central cloud from	outside the Host
    Rai, Ankush 
    Ankush.Rai at commscope.com
       
    Wed Mar 31 03:27:16 UTC 2021
    
    
  
Hi,
I have installed the central cloud (All in one Duplex) in a virtualized environment. But not sure what NAT rules are required, to access it from outside the Host machine.
  *   Below is my deployment.
[Diagram  Description automatically generated]
  *   Starlingx is installed.
system host-list
+----+--------------+-------------+----------------+-------------+--------------+
| id | hostname     | personality | administrative | operational | availability |
+----+--------------+-------------+----------------+-------------+--------------+
| 1  | controller-0 | controller  | unlocked       | enabled     | available    |
| 2  | controller-1 | controller  | unlocked       | enabled     | available    |
+----+--------------+-------------+----------------+-------------+--------------+
  *   Packets are reaching to the Host machine
listening on ens1, link-type EN10MB (Ethernet), capture size 262144 bytes
11:35:56.144807 IP 14.141.56.230.61002 > 172.31.21.86.8080: Flags [S], seq 1632511605, win 65280, options [mss 1360,nop,wscale 8,nop,nop,sackOK], length 0
11:35:56.145030 IP 14.141.56.230.48775 > 172.31.21.86.8080: Flags [S], seq 455906092, win 65280, options [mss 1360,nop,wscale 8,nop,nop,sackOK], length 0
11:35:56.396487 IP 14.141.56.230.57030 > 172.31.21.86.8080: Flags [S], seq 4106471277, win 65280, options [mss 1360,nop,wscale 8,nop,nop,sackOK], length 0
11:36:00.145533 IP 14.141.56.230.61002 > 172.31.21.86.8080: Flags [S], seq 1632511605, win 65280, options [mss 1360,nop,wscale 8,nop,nop,sackOK], length 0
  *   I have tried below rules.
iptables -t nat -I PREROUTING  -i ens1 -p tcp --dport 8080 -j DNAT  --to-destination 10.10.10.2:8080
iptables -A FORWARD -j ACCEPT
iptables -t nat -I POSTROUTING -s 10.10.11.0/24 -o enp125s0 -j MASQUERADE
iptables -t nat -I POSTROUTING -s 10.10.10.0/24 -o ens1 -j MASQUERADE
  *   Ipv4 forwarding is enabled on the host and from Host I can reach the controllers.
But still could not see packet reaching to the controller. Any suggestion would be very helpful.
Thanks,
Ankush
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