Here is what I can tell you...
1. CGNAT requires a services card.
2. In-line NAT is for 1-to-1 NAT translations ONLY.
3. The MX5 has no MPC cards. It does have 4 MIC card slots,of which one is populated with a 20 port 1G card and only one more is available and it is only licensed for a MS-MIC (services) card.
Hope this helps.
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Brian Johnson
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Original Message:
Sent: 03-31-2021 12:11
From: Unknown User
Subject: Inline cgnat on MX5 with MPC
I've been reading the 'Day One: Deploying CGNAT for the MX Series' PDF which is pretty good. I want to setup source NAT to a pool. E.g. private subnet (/19) behind the MX to a pool to a smaller public pool (E.g /28) In the PDF is talks about inline and services NAT (You need a MPC for inline and DPC for services / Advance NAT from what I see) My Juniper is an MX5 with MPC cards so I guess I can only be using inline NAT.
I saw this in the document:
"Users looking to set up inline NAT ask this type of question often: But what if I have a private subnet of /14 but only have a/28 for the public pool? What do I do?" The honest answer is you need to move to using a service card in your MX and then move to a different dynamic NAT translation-type."
Just to be able to do a source NAT to a pool you need a services card? (So I can't set this up with only MPC card) Is my understanding about this correct?