11-24-2014 03:42 PM - edited 03-05-2019 12:13 AM
Hello.
I need some help please.
I need to figure out how to set this up.
We are trying top move from a current inefficent setup to a new solution.
How can I connect 4 separate internet hand offs on 1 3850 switch?
I have 2 ASA in a failover setup and a 3850 switch.
The 4 100mb circuits are ethernet handoffs.
If I connect all 4 into a 3850 switch, how can i make the ASA point to all 4 circuits?
What would I use as the Gateway for the ASA?
This would be simple with one circuit, as the gateway on the ASA would be the IP of the handoff.
I was thinking vlans on the switch. Putting the ASA in one and the 4 circuits in another?
Please help.
I have attached a visio.
Thank you
11-24-2014 07:54 PM
Hi,
You would have to bring each connection separately (4) and connect them to your 3850 switch using /30s. Assuming you are using static routes, on the firewall you have to pick one link as your primary with the lowest AD (default) and the other 3 with higher ADs as backups.
The bad thing about this design is that if you lose the 3850 switch, you lose all your circuits.
A better design would be to have redundant switches and have each switch with 2 connections.
The other negative part of this design is that all your circuits are coming from the same provider (Cogent) if this provider has any issues or outage, you lose all your circuits.
A better design would be to get the circuits from 2 different providers.
HTH
11-25-2014 07:31 AM
Just to add to Rezas perfect answer:
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