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Re: Anyone using uvlan out there?
On Fri, Sep 14, 2007 at 07:35:26AM +1000, Steven Haigh wrote: > From the web site: > uvlan is a User-space Virtual Local Area Network. In other words, > uvlan peers act as nodes on a network switch. Routing ethernet > traffic between peers inteligently. Thus allowing for multiple > networks to share resources and even IP address space. Some may call > it a VPN (Virtual Private Network) application, but it's much more > powerful. Differences with traditional VPN technology: It's a VPN. None of these supposed "differences" are different from the fundamental characteristics of a VPN: > 1. It is peer-to-peer invoke_buzzword_of_the_month(); > 2. It doesn't require licensing Plenty of VPN products out there are FOSS; > 3. It is much simpler Simpler than what? > 4. It operates at Layer-2 (Ethernet), VPNs generally operate at > Layer-3 (IP) Generally, perhaps, but it's not a requirement of the term "VPN" that it be an L3 transition. > Layer-2 applications like gaming can't be supported with > Layer-3 tunneling. Plenty of games can successfully use IP. > From my understanding, this software is pretty much acting like a > bridge, but with endpoints over a routed IP network. > > Has anyone actually used this? Thoughts? Criticisms? I haven't used this particular software, but I've used OpenVPN (software of the Gods, by gum) in it's L2 mode, and it's OK as long as you observe all of the usual restrictions on LAN-like traffic over a low-bandwidth, high-latency link. Most things that need to use Ethernet assume all sorts of things that just don't hold over the Internet, and it causes some painful hassles. But, engineered properly, in the correct circumstances, it can be handy to bridge two or more segments over a routed network. A criticism of uvlan in particular is that I wouldn't trust my network security to people who sound so clueless. Their derision of VPNs, as you quoted above, shows either a lack of sense or a blind hatred, using libpcap in this situation gave me some chuckles, and their "What algorithms are used?" page scares me a little. I'll stick with OpenVPN, myself. > Phone: (03) 90001 6090 - 0412 935 897 Gee you Melbournians are advanced... you've already gone to 11 digit phone numbers... <grin> - Matt