mirror of
https://github.com/status-im/libp2p-test-plans.git
synced 2025-02-21 11:08:07 +00:00
17 lines
759 B
Markdown
17 lines
759 B
Markdown
|
# Router
|
||
|
|
|
||
|
|
This directory contains a Debian-based router implemented on top of nftables.
|
||
|
|
|
||
|
|
It expects to be run with two network interfaces:
|
||
|
|
|
||
|
|
- `eth0`: The "external" interface.
|
||
|
|
- `eth1`: The "internal" interface.
|
||
|
|
|
||
|
|
The order of these is important.
|
||
|
|
The router cannot possibly know which one is which and thus assumes that `eth0` is the external one and `eth1` the internal one.
|
||
|
|
The firewall is set up to take incoming traffic on `eth1` and forward + masquerade it to `eth0`.
|
||
|
|
|
||
|
|
It also expects an env variable `DELAY_MS` to be set and will apply this delay as part of the routing process[^1].
|
||
|
|
|
||
|
|
[^1]: This is done via `tc qdisc` which only works for egress traffic. To ensure the delay applies in both directions, we divide it by 2 and apply it on both interfaces.
|