I need to configure a L2TP/IPSEC VPN Server for a friend. For this I used Vyatta, well its forked version Vyos
Network Access Requirements
- L2TP traffic – UDP 1701
- Internet Key Exchange (IKE) – UDP 500
- IPSec Network Address Translation (NAT-T) – UDP 4500
set vpn l2tp remote-access outside-address X.X.X.X
set vpn l2tp remote-access client-ip-pool start X.X.X.100
set vpn l2tp remote-access client-ip-pool stop X.X.X.200
set vpn l2tp remote-access ipsec-settings authentication mode pre-shared-secret
set vpn l2tp remote-access ipsec-settings authentication pre-shared-secret FACEBOOK
set vpn l2tp remote-access authentication mode local
set vpn l2tp remote-access authentication local-users username test password test
set vpn ipsec ipsec-interfaces interface eth0
set vpn ipsec nat-traversal enable
set vpn ipsec nat-networks allowed-network 0.0.0.0/0
Commit / Save
commit, then test, if all is working save
8 replies on “Set Up Vyatta / Vyos as an L2TP/IPsec VPN Server”
I performed the configuration above and i can connect on vyos vpn’s, but i lose my internet connection because the vpn connection input a default route in my route table. Could you help me?
You client is possibly configured to route all traffic over the VPN (vyatta/vyos router vpn).
In my case this is what I want.
If your vyataa/vyos setup does not have a default gateway it will be unable to route traffic to the internet
Check your configuration:
vyos@vyos# show system gateway-address
That’s right man!
Thanks a lot for the quickly response.
my pleasure, and I am glad I could help. Best wishes to you.
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