I have a host who set up our Juniper SSG 5 VPN with Firmware version-6.2.0r5.0
I've been trying to set up VPN on it using this guide: http://kb.juniper.net/InfoCenter/index?page=content&id=KB4094 I've followed the steps and on my Mac, whenever I try to connect using L2TP over IPSec I get the following error;
Summary of Steps: Create User (give them L2TP auth ability), Create Group, Place User in Group, Create VPN Gateway, Create VPN, create IP Pool, change default L2TP settings, create Untrust > Trust Policy.
The L2TP-VPN server did not respond. Try reconnecting. If the problem continues, verify your settings and contact your Administrator.
I looked in my Firewall's logs, but I don't even see anything under Reports > Logs > Events.
I'm.. obviously missing something, I just don't know what I'm missing at this point. I'm just starting networking and this is sort of Step 101 and I'm getting annoyed and just want to throw up OpenVPN, but I've read that has problems with Juniper Firewalls. Hooray.
Ok folks. I just want to mark this as answered and leave what I discovered here incase anyone else comes along wanting to know the answer.
IF YOU ARE USING A MAC, DO NOT USE THE BUILT IN VPN CLIENT AND THINK JUNIPER IS GOING TO BE OKAY WITH IT
What I discovered is that no matter what it cannot pass on the correct credentials, it simply doesn't have the amount of fields needed. The VPN is incompatible in my opinion. I got it working on VPN Tracker & Juniper's Client, but not the Mac client.
So. Save yourself a headache if you're a Mac user and don't even try.