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

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    [ https://issues.apache.org/jira/browse/CLOUDSTACK-4535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13852622#comment-13852622 ] 

ASF subversion and git services commented on CLOUDSTACK-4535:
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Commit bcedbe698afd6a4372348de678f63c2c6071e9fc in branch refs/heads/4.3 from [~jayapal]
[ https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=bcedbe6 ]

CLOUDSTACK-4535 Fixed issue in PF in connecting from private nw when public and private ports are different


> 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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