How to specify IPsec PSK when setting up a VPN client on an Asus router?

Question

VPN

Asus RT-AC66U B1 router , how (if it has the possibility of such a combination) among all other settings of the L2TP VPN client, can I additionally specify IPsec PSK?

Thank you.

Answer 1

This router does not know IPsec, only unencrypted connections. (Drop him out)

Answer 2

L2TP is not equal to L2TP/IPSec, it's one on top of the other.

Answer 3

numberOfPackages='apt list --installed | grep $1 | wc -l'

Invalid quotes. It should be like this:
In this case, the commands will be executed in the numberOfPackages assignment string, and the if [ "$numberOfPackages"number will be substituted in. In the original code, the following is substituted inside the if:

if [ "apt list --installed | grep $1 | wc -l" -gt "0" ]

which of course doesn't make any sense.

Answer 4

nakuya to grab the list??
use dpkg -s %packagename% hatch !!
If the output stream contains the line
Status: install ok installed
, then the package is installed ;
if the line
Status: deinstall ok config-files
, then the package is uninstalled, but there are config scraps left in the system.