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 Post subject: UMR VPN in OpenBSD
PostPosted: Wed 10-17-2007 9:28PM 
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Colonel
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Joined: Wed 02-20-2002 11:27PM
Posts: 867
Location: No one's really sure what became of Castorite after graduation

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Taking a cue from the Linux thread, I'll write this. Here's hoping I can post without a VPN connection before getting cockblocked.

I don't suppose anyone's got a good OpenBSD ipsecctl configuration kicking around somewheres?

This shoddy hack doesn't seem to do much at all:
Code:
ike dynamic esp \
  from 192.168.0.0/24 to 131.151.0.0/16 \
  peer vpn.umr.edu \
  psk UMRIPSec
Now, I don't have any user/pass info in there, so that's a known. The deal is, I'm not seeing any "hey idiot, enable the foobaz-5 crypto module" messages coming back at me, just isakmpd dumping this:
Code:
204732.665243 Default message_validate_notify: protocol not supported
As I understand it, any unnamed options are supposed to default to "sane" values, so I'm missing something else important or the Cisco is doing something wonky. A cursory browse of the guides I'm seeing out there on the web are either far out of date or using some way overcomplicated setup. I haven't really dug in to this yet and I'm hoping someone will have a good configuration so I won't have to. This trainwreck of standards makes me yearn for the bygone days of SSH tunnels.


I almost had the vpnc package running. Very simple to configure and run the client itself--I was impressed. However, attempting to fix the helper vpnc-script and coming up with correct routing tables plus pf filtering rules got me pretty close to putting a fork in my eyeball. Not recommended for mass consumption.

For what it's worth, here's a few strings from a vpnc session:
Code:
IKE SA selected psk+xauth-3des-md5
peer is using type 130 for NAT-Discovery payloads
NAT status: NAT-T VID seen, no NAT device detected
got 4 acls for split include
acl 0: addr: 131.151.0.0/255.255.0.0 (16), protocol: 0, sport: 0, dport: 0
acl 1: addr: 192.65.97.0/255.255.255.0 (24), protocol: 0, sport: 0, dport: 0
acl 2: addr: 10.20.0.0/255.255.255.224 (27), protocol: 0, sport: 0, dport: 0
acl 3: addr: 10.22.0.0/255.255.0.0 (16), protocol: 0, sport: 0, dport: 0
Cisco Systems, Inc./VPN 3000 Concentrator Version 4.7.2.K
IPSEC SA selected 3des-md5


I wish IT would be more forthcoming with this sort of information on their website.


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 Post subject:
PostPosted: Wed 10-17-2007 10:11PM 
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Spanish
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Joined: Wed 08-21-2002 10:10AM
Posts: 1898
Location: A-Frames bitches!

Source: Fidelity
If this helps at all, the vpnc for FreeBSD (/usr/ports/security/vpnc) works just as seamlessly as the Linux build, if I were you, I would look at the vpnc-script for FreeBSD since OpenBSD is *close* (similar ifconfig, pf rules etc). I do remember at one time using an older release for Linux and having the same hair-pulling expierence with getting my route tables set and working >.<.

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