Tags » IPSec

IPSEC/L2TP VPN setup on Debian using CLI tools.

How to get IPSEC/L2TP VPN working on Ubuntu with network manager GUI:

This is already documented, you can follow the following post:

Just a note on the above post, I did not install custom xl2tpd version like mentioned in the above post on my Lubuntu 16.04 box and I went with the stock xl2tpd provided in the repos and it worked fine. 1,715 more words

WireGuard claims to be better than OpenVPN

“Revolutionary VPN Project” is what WireGuard claims to be and it also says that’s overall faster than well-known solutions like OpenVPN. To be fair the application, the service and the entire development is still under construction but I want anyway take a critical look at it right now – do answer the question if it’s already worth testing it or not. 596 more words


python error while ipsec verify under archlinux

I’ve been trying to setup a l2tp vpn connection for my computer, and while following the guide, I felt on a python error on line 84… 222 more words


ESP[Encapsulating Security Payload ] and AH [Authentication Header ]

ESP provides confidentiality, Authentication, Integrity, Anti replay

ESP packet format:

 |               Security Parameters Index (SPI)                 |
 |                      Sequence Number                          |
 |                    Payload Data* (variable)                   |
 ~                                                               ~
 |                                                               |
 +               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |               |     Padding (0-255 bytes)                     |
 +-+-+-+-+-+-+-+-+               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |                               |  Pad Length   | Next Header   |
 |         Integrity Check Value-ICV   (variable) optional       |
 ~                     OR                                        ~
 |           Authentication Data (variable)                      |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 633 more words