cloudstack-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-10346) Problem with NAT configuration and VMs not accessing each other via public IPs
Date Wed, 18 Apr 2018 17:24:00 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-10346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16442898#comment-16442898
] 

ASF GitHub Bot commented on CLOUDSTACK-10346:
---------------------------------------------

rafaelweingartner commented on issue #2514: [CLOUDSTACK-10346] Problem with NAT configuration
and VMs not accessing each other via public IPs
URL: https://github.com/apache/cloudstack/pull/2514#issuecomment-382464622
 
 
   Nothing fancy here. The difference is that I am using XenServer, but that should not matter.
It is a standard "advanced network deployment". I will apply your PR and see what happens.
   
   Can you only clarify the feature you are using? Are you testing the SNAT only? Or, are
you using the NAT configuration as well?

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


> Problem with NAT configuration and VMs not accessing each other via public IPs
> ------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-10346
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10346
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>            Reporter: Rafael Weingärtner
>            Assignee: Rafael Weingärtner
>            Priority: Major
>
> When users create a VPC, and configure a NAT from a public IP to application in a VM.
This VM(applications) are not accessible via public IP for other VMs in the same VPC.
>  
> The problem is in the NAT table. If you take a closer look at rules, you will see something
like:
> {code:java}
> -A PREROUTING -d publicIP/32 -i eth1 -p tcp -m tcp --dport 80 -j DNAT --to-destination
internalIp:80
> {code}
> The problem is that according to this rule only packets coming via eth1(public interface),
will be “redirected” to the internal IP. We need an extra entry to each one of the NAT
configurations. For the presented rule, we would need something like:
> {code:java}
> -A PREROUTING -d publicIP/32 -i eth2 -p tcp -m tcp --dport 80 -j DNAT --to-destination
internalIp:80
> {code}



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Mime
View raw message