How to organize the aggregation of Internet channels?

Question

linux

It is necessary to make an aggregation of two uplinks from Internet providers. I plan to do this in pfsense through the hypervisor. Is it possible? Debian with Proxmox is installed on the main server. If you create a virtual machine with pfsense on it, will it be possible to throw two network cards with uplinks from providers into it, make aggregation and return the output to the third network card to the local area?
That is, the scheme is such Debian Proxmox -> pfsense virtual machine with two uplinks, aggregates traffic -> issues a channel to the third network card in Lan.
Or is it easier and more logical to set up aggregation on Debian itself?

Answer 1

How do you plan to do aggregation through different providers? Do you have a range of PI addresses that could be advertised through both links? Otherwise, this is not aggregation, but something else - balancing, failover, zilch ...

Answer 2

In what way do you need aggregation? You can always set up Dual WAN and on almost anything, the only question is what exactly do you want from it?

Answer 3

Aggregation of two channels from different ISPs is impossible.
It involves combining channels - and you can do a maximum of load balancing.
A packet leaving through one uplink will always return through it.

Answer 4

Aggregation is a union. For example, aggregation of 2-3-4 physical eth ports allows you to get a logical "wire" operating at a speed (twice-three-four times) faster. So, for example, does synology.
In this regard, link aggregation through different providers cannot be done - at best, load balancing - this protocol is there, this is here, this host is there, this is here. A packet that entered through eth1 from the first provider must leave through it, otherwise it will simply be dropped by the second provider at the entrance.