[jira] [Updated] (CLOUDSTACK-4535) In Virtual Router Port Forwarding Service, the connection is not established when client on the same private network

["Abhinandan Prateek (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-4535?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Abhinandan Prateek updated CLOUDSTACK-4535:
-------------------------------------------

    Assignee: Jayapal Reddy

> In Virtual Router Port Forwarding Service, the connection is not established when client on the same private network
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-4535
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4535
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Virtual Router
>    Affects Versions: pre-4.0.0, 4.0.0, 4.0.1, 4.0.2, 4.1.0, 4.1.1
>         Environment: cs4.1.1
>            Reporter: sie,chih-wei
>            Assignee: Jayapal Reddy
>            Priority: Minor
>             Fix For: 4.3.0
>
>
> When a client on the same internal network as the Port Forwarding requests a connection to the service's public IP address & port , the connection breaks.
> EX : Port Forwarding for TCP Public_IP:1234 to Private_IP:22
> a client(in private network) do => $ssh root@Public_IP -p 1234 => $ ...time out ...
> Solution : In Virtual Router do
> $ sudo iptables -t nat -D POSTROUTING -s Private_CIDR -p tcp --dport 1234(public port) -d Private_IP -j SNAT -o eth0 --to-source
> $ sudo iptables -t nat -I POSTROUTING -s Private_CIDR -p tcp --dport 22(private port) -d Private_IP -j SNAT -o eth0 --to-source
> https://github.com/apache/cloudstack/blob/master/patches/systemvm/debian/config/root/firewall.sh
> 74 : (sudo iptables -t nat $op POSTROUTING -s $vrGuestIPNetwork -p $prot --dport ***$port*** -d $guestVmIp -j SNAT -o eth0 --to-source $vrGuestIP &>> $OUTFILE || [ "$op" == "-D" ])
> have to change ??  =>
> (sudo iptables -t nat $op POSTROUTING -s $vrGuestIPNetwork -p $prot --dport ***$guestPort*** -d $guestVmIp -j SNAT -o eth0 --to-source $vrGuestIP &>> $OUTFILE || [ "$op" == "-D" ])
> Thanks.



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