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Intra-EPG contract

udo.konstantin
Level 1
Level 1

Hello,

a customer has the following requirement: 

EPs within an EPG shouldn't communicate with each other per default. But there is one exception. 
A system within this EPG should be accessable from all other EPs within this EPG. 

Is this possible with Intra-EPG Isolation and define an contract to allow communication from specified EPs to only ONE EP? 

Thanks

Udo 

1 Accepted Solution

Accepted Solutions

Robert Burns
Cisco Employee
Cisco Employee

No.  that's the purpose of an EPG - to provide a consistent security policy for all EPs.  For that particular EP, if you need a different set of access policies, then it should be placed into it's own EPG.  Sounds like you want Intra-EPG Isolation enabled on the main EPG (to prevent all endpoints from communicating with each other), and then use a uSeg (microsegment EPG) for the single endpoint you need restrict access to.  To re-assign the EP to a uSeg EPG, you can match on the single EP's IP/MAC/VM Attribute etc - then you can apply a contract between the Intra-Isolated EPG and the uSeg EPG to accomplish what you wish. 

Robert

View solution in original post

1 Reply 1

Robert Burns
Cisco Employee
Cisco Employee

No.  that's the purpose of an EPG - to provide a consistent security policy for all EPs.  For that particular EP, if you need a different set of access policies, then it should be placed into it's own EPG.  Sounds like you want Intra-EPG Isolation enabled on the main EPG (to prevent all endpoints from communicating with each other), and then use a uSeg (microsegment EPG) for the single endpoint you need restrict access to.  To re-assign the EP to a uSeg EPG, you can match on the single EP's IP/MAC/VM Attribute etc - then you can apply a contract between the Intra-Isolated EPG and the uSeg EPG to accomplish what you wish. 

Robert

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