41ad95600b48b60755267146d8d855d3a3e28d5a
howto/networksettings.md
... | ... | @@ -22,6 +22,8 @@ Check that its really disabled: |
22 | 22 | sysctl -a | grep rp_filter |
23 | 23 | ``` |
24 | 24 | |
25 | +**Note** The max value from `conf/{all,interface}/rp_filter` is used when doing source validation on the `{interface}`. In case you don't want to disable `rp_filter` for the entire system, the correct setup is to set both `net.ipv4.conf.all.rp_filter=0` and `net.ipv4.conf.{interface}.rp_filter=0`, where `{interface}` is your vpn interface. |
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26 | + |
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25 | 27 | Also the following options must be set. |
26 | 28 | ```sh |
27 | 29 | $ sysctl -w net.ipv4.conf.all.forwarding=1 net.ipv6.conf.all.forwarding=1 |