Ubuntu Server 16.04 VPN connection issue - Ask Ubuntu

i'll try make brief possible while giving many details possible.

here situation, setup ipsec vpn on core router wisp log in remotely. works beautifully on windows 10 , business partners iphone , ipad.

i have a homelab setup @ house , wanted leverage vm snmp traffic monitoring wisp network of devices. step 1 linux vm, (ubuntu server 16.04 in case) connect vpn server. step 2 configuring snmp monitoring program.

doing research, located this guide on how setup strongswan client on ubuntu server. lot of other guides use openswan has been depreciated/removed server 16.04 repos.

got installed , partially working. news vpn connect successfully. bad news doesn't seem creating tunnel interface on ubuntu.

so missing here? i've been working on last month , half , out of ideas. fresh pair of eyes appreciated.

here config files client setup. sanitized:

/etc/ipsec.conf

# 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     esp=aes128-sha1     ike=aes128-sha1-modp1024,3des-sha1-modp1024!   conn amvpn     keyexchange=ikev1     left=%defaultroute     auto=add     authby=secret     type=transport     leftprotoport=17/1701     rightprotoport=17/1701     # set ip address of vpn server     right=ip 

/etc/xl2tpd/xl2tpd.conf

[lac amvpn] ; vpn server goes here lns = ip ppp debug = yes pppoptfile = /etc/ppp/options.l2tpd.client length bit = yes 

and finnally /etc/ppp/options.l2tpd.client

ipcp-accept-local ipcp-accept-remote refuse-eap require-mschap-v2 noccp noauth idle 1800 mtu 1410 mru 1410 defaultroute usepeerdns debug lock connect-delay 5000 

again, let me know if have questions, comments, or suggestions. thanks!