CGNAT

Fri Feb 19 18:04:56 UTC 2021

I recommend you to take a look at DANOS.

https://danosproject.atlassian.net/wiki/spaces/DAN/pages/416153601/Carrier+Grade+NAT+CGNAT

- A very active open-source project.
- Sponsored by AT&T.
- Uses Vyatta (and DPDK for good performance)
- The Routing Engine is based on FRR.
- Syntax sounds like Junos.
- Is the ONLY ONE open source project(at least that I know) that implements
CGNAT on Bulk Port Allocation mode(not deterministic/predefined).
- Had very good improvements on PCP recently.
- Supports a few NAT-ALGs.

I and some good friends here in Brazil had some good experiences with it.

Marcelo Gondin wrote this tutorial in pt_BR, mentioning about a case with:
26Gbps / 1.5Mpps / 11502 simultaneous clients / 192 used Públic IPv4
addresses.
https://wiki.brasilpeeringforum.org/w/CGNAT_Bulk_Port_Allocation_com_DPDK

Em sex., 19 de fev. de 2021 às 11:57, Steve Saner <ssaner at ideatek.com>
escreveu:

> We are starting to look at CGNAT solutions. The primary motivation at the
> moment is to extend current IPv4 resources, but IPv6 migration is also a
> factor.
>
> We've been in touch with A10. Just wondering if there are some alternative
> vendors that anyone would recommend. We'd probably be looking at a solution
> to support 5k to 15k customers and bandwidth up to around 30-40 gig as a
> starting point. A solution that is as transparent to user experience as
> possible is a priority.
>
> Thanks
>
> --
> Steve Saner
> ideatek HUMAN AT OUR VERY FIBER
>
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-- 
Douglas Fernando Fischer
Engº de Controle e Automação
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