Hi, I have often used the VPN at Manchester from various locations, mostly in the UK. I think this is a hardware VPN solution, so this may explain why it works well. It certainly allows you to use the AG bridged (our VPN network is not multicast enabled) from behind a restrictive firewall, so long as the VPN outgoing port is enabled. I have even used this to run AG over wireless, where our wireless network only allows traffic outgoing over TCP ports 80 and the VPN port.
Regarding a software VPN, this should work if it is configured correctly, but configuring VPNs can be quite hard. I would think that an L2TP IPSec VPN with IKE configuration would probably work well. I am fairly sure that this sort of set up would be possible with OpenVPN. Andrew :) ============================================ Access Grid Support Centre, RSS Group, Manchester Computing, Kilburn Building, University of Manchester, Oxford Road, Manchester, M13 9PL, UK Tel: +44(0)161-275 0685 Email: [email protected] > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Many Ayromlou > Sent: 30 October 2006 21:57 > To: Doug Baggett > Cc: ag-tech > Subject: Re: [AG-TECH] Using Access Grid with Ethernet Bridged OpenVPN > > Hi Doug, > > A while back I tried OpenVPN (mac client @ home behind NAT/Router--- > >linux server on open network) and although other stuff worked, I > could not get AG going (I was not using bridged mode though.....I was > using the other mode.....don't remember right now). > > I have since tried to run it with an L2TP type VPN (Mac notebook > running osx behind NAT/Router --> Mac OSX Server on open network) and > AG3 works quite well. I've been able to get somewhere near 14-16 > videos smoking my 6Mb dsl link. I've also tried this from behind a > firewall at work (mac notebook behind a really strict firewall > blocking ports 1024+ UDP/TCP ---> same mac OSX server on open > network) and AG3 works fine. > > So to answer your question OpenVPN did not work for me and I admit it > was not the same situation you're describing. L2TP worked fine behind > NAT and also behind a pretty strict firewall. > > TTYL > Many > On 30-Oct-06, at 1:35 PM, Doug Baggett wrote: > > > Has anybody tried using Access Grid using bridged Ethernet and > > OpenVPN? > > (www.openvpn.net) > > > > OpenVPN supports TCP instead of UDP, and I have users behind > > Firewalls that > > restrict outbound UDP and I have a server that I could use as the > > endpoint > > that sits > > > > I know there would be a performance hit using TCP, but on a high > > performance > > network it would be interesting to know if anybody has given it a try. > > > > -Doug B > > OCI/NSF > > >
