So how can i get an encrypted vpn service with username and password auth instead of certificates? We kind of skimmed over those bits.

On 1 Dec 2007, at 06:44, Scott Learmonth wrote:

On 30-Nov-07, at 9:57 PM, Jason Dixon wrote:

On Dec 1, 2007, at 12:37 AM, visc wrote:

On 30-Nov-07, at 2:13 AM, Khalid Schofield wrote:

Hi,
I'd like to make a VPN Concentrator using openbsd. I want users to be able to authenticate using usernames and passwords and to either nat the users or give them an ip from our main dhcp server via a bridge.

If I have say a mac user at home wanting to connect into my network
using the built in mac os client how should I set up the vpn server?
Will it auth using usernames and passwords or is certificates only
simple way to authenticate to the vpn server?

How would I know which is better to use for this application out of
PPTP or IPsec?

Any and all input welcome.

Khalid

I'm embarking down the same path for what it's worth, but I'm actually doing it to eventually get rid of my Cisco 3005. My main structure though is ipsec between static fixed devices/locations and I don't need to worry about supporting PPTP or L2TP over IPSEC, or supplying addresses- yet.

I think Brian A. Seklecki's response:
`That's a tall order. In Cisco-land a VPNC3000k will run you $5k plus SMARTNet. You'll need isakmpd(8) policies. You'll need dhclient-server relay support. You'll need XAuth authentication (Possibly via PAM). You'll need IPSEC NAT-T. Maybe tie it all together with LDAP and PKI.

Kind of hit the nail on the head of my worries as well. I'm busy enough now making a secure network between offices using an OpenBSD box as the hub, but when I need to start adapting for "Road Warriors" things may get tricky. For example, your Mac user at home, assuming Tiger's built in client (I'm not clear on Leopard's new VPN protocols), can only use PPTP or L2TP over IPSEC. I don't know if it's even possible to support all protocols easily on an OpenBSD concentrator, so I plan to push my Road Warriors into using clients such as VPN Tracker or The Greenbow client, though open source alternatives would be preferable. In my perfect world it would be isakmp/ipsec only for me and to hell with clients. Too bad that can't always happpen...


I haven't been following this thread, but I saw your post and thought I'd add some bits for you to consider. First, you mention that Mac OS X only supports PPTP or L2TP over IPSec. This is not true. I've used OpenVPN (via tunnelblick) and the Cisco VPN client. OpenBSD has solutions that will support both of those clients. Would it be nice to have XAUTH support? Sure, but don't hold your breath.

---
Jason Dixon
DixonGroup Consulting
http://www.dixongroup.net


Thanks, it's good to know not to get too excited about XAUTH. This is all new territory for me.

I was only referring to the built-in osx client via Internet Connect.app. Though the "Cisco VPN client" is actually what is driving my desire to move away from Cisco. My support contracts have run out with Cisco, and I'm too much of a paranoid soul to use Cisco clients I find via other means. Yet incompatibility has once again struck me.

And Khalid - sorry to hijack your thread. Most of my road warriors are going to be on macs and too cheap to purchase VPN Tracker. Any successes I gave I'll certainly share.


no probs

Cheers

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