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I need to establish a L2TP over IPSEC vpn connection to another server. I'm using ubuntu 16.04.

Also I installed StrongSwan and xl2tp plus configurations from this tutorial

https://codediary.net/posts/l2tp-ipsec-vpn-on-ubuntu-16-04/

When I run IPSEC with the command ipsec up myvpn it fails to connect. I guess it's because it needs some custom configurations for IPSEC connection.

Following conditions are needed

IPSEC Phase 1 Proposal----------------------

encryption 3DES     Authentication SHA1

encryption AES192   Authentication SHA1

encryption AES256   Authentication MD5

Diffie-Hellman Group 2

Key lifetime (seconds) 86400



IPSEC Phase 2 Proposal----------------------

Local Address 0.0.0.0/0.0.0.0

Remote Address 0.0.0.0/0.0.0.0

encryption 3DES     Authentication SHA1

encryption AES192   Authentication SHA1

encryption AES256   Authentication MD5

Key lifetime (seconds) 86400

And here is my current ipsec.conf file

# ipsec.conf - strongSwan IPsec configuration file



# basic configuration



config setup

        # strictcrlpolicy=yes

        # uniqueids = no



# Add connections here.



# Sample VPN connections



conn %default

        ikelifetime=60m

        keylife=20m

        rekeymargin=3m

        keyingtries=1

        keyexchange=ikev1

        authby=secret

        ike=aes128-sha1-modp1024,3des-sha1-modp1024!

        esp=aes128-sha1-modp1024,3des-sha1-modp1024!



conn myvpn

     keyexchange=ikev1

     left=%defaultroute

     auto=add

     authby=secret

     type=transport

     leftprotoport=17/%any

     rightprotoport=17/1701 

     right=XXX.XXX.XXX.XXX

Can anyone tell me how to make ipsec.conf file to satisfy mentioned conditions?

Thank you.