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Special Forums Cybersecurity How to use Netfilter properly with IPv6? Post 302991409 by 1in10 on Friday 10th of February 2017 06:49:20 AM
Old 02-10-2017
Debian 8.x works a bit more sophisticated on that issue, but check on the GUI your network configurations. Probably there should be an icon where you can disable the IPv6 support and the whole thing. Traffic will not even be started on that. If it works like this, fine, otherwise, try to find the interface in /etc and may comment it out. Hope that helps. Cheers.
Once you have the opportunity to look at the network interfaces and their connections, you can disable or enact them, as well you can set the DNS and the Gateway. The complication of Debian is, that it offers two of that tools.

Last edited by 1in10; 02-10-2017 at 07:51 AM.. Reason: explanation
 

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L2tpIPsecVpn(1) 					      General Commands Manual						   L2tpIPsecVpn(1)

NAME
L2tpIPsecVpn - L2tp over IPsec VPN Manager applet for the GNOME Desktop SYNOPSIS
L2tpIPsecVpn [options] DESCRIPTION
This GUI is not a network manager plugin. However, it provides a systray icon in the indicator applet from which a non privileged user can establish and bring down L2TP over IPsec VPN connections. From there the user can add, remove and edit vpn connections. Editing allows configuring various options for IPsec, L2TP and PPP. Among others, the user can configure eg. the gateway, the use of either PSK or a certificate for authentication, various L2TP options as redial- timeout and attempts and of course all important PPP options. It also allows you to configure PPP for tunnel splitting because you can add routes as you want. When applying your settings, all necessary configuration files are written accordingly (ipsec.conf, xl2tp.conf, options.xl2tpd, opensc.conf up and down scripts ...). It relies on Openswan and xl2tp packages as the underlying protocol handlers. You can also use certificates on your local machine or, if e.g. OpenSC is installed and configured, even on a smart card to handle PPP authentication. The GUI automatically detects when network interfaces are going up or down and can (if so configured) automatically establish or close VPN connections. OPTIONS
startConnectionEditor Starts the connection editor dialog. applySettings Write configuration files according to the connection settings, must be started with root privileges, ie use gksudo as non root user. deleteAllConfFiles Delete all configuration files, must be started with root privileges, ie use gksudo as non root user. AUTHORS
Werner Jaeger version 1.0.9 11 Oct 2012 L2tpIPsecVpn(1)
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