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https://issues.apache.org/jira/browse/CLOUDSTACK-6820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daan Hoogland closed CLOUDSTACK-6820.
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Resolution: Won't Fix
> VPC router ICMP acl
> -------------------
>
> Key: CLOUDSTACK-6820
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6820
> Project: CloudStack
> Issue Type: Improvement
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Virtual Router
> Affects Versions: 4.3.0
> Reporter: Thijs Houtenbos
> Priority: Minor
> Labels: security
>
> There is a default allow icmp any any on the VPC router vm which cannot be
> controlled with the network ACLs. This makes it impossible to block certain
> icmp traffic.
> root@r-4135-VM:~# iptables -L -v | grep icmp
> 10784 901K ACCEPT icmp -- any any anywhere anywhere
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