<quote who="nate"> > Hanasaki JiJi said: >> Wow!! great overview .. AFter all of that... Which do you >> recommend and why? Do any of them interoperate with each other? >> My CISCO client runs fine over TCP with ipchains NAT. > > > depends on your OS requirements. vtun only officially > supports freebsd, linux and solaris i believe. vpnd only > officially supports freebsd and linux(a guy i know > ported it to BSD/OS though). vtun requires a kernel > driver for optimal performance(not sure if its required > period, it might not be..). vpnd does not require any > special drivers.
i should mention that i started using vtun with the specific intention of replacing vpnd very soon. vpnd is great but it doesn't scale as well as i had hoped. well i think it may be more of a kernel limitation, each vpnd connection takes 1 slip interface. on one machine i ran out of slip interfaces with a total of 7, another machine i ran out with a total of 1! i can't find any docs on how to increase the # of interfaces in the kernel, so vtun is scheduled to replace vpnd around christmas time. i have about 9 current unix based vpns, with another 4 or 5 that want to..vtun claims to scale to hundreds of vpns("as much as the machine can handle" the docs say). so im very hopeful(sofar its been perfect) that i can replace vpnd. with only t1s at our offices we won't ever come near even 35 concurrent vpn connections we'd run outta bandwidth ..so the p3-700s should be more then enough to accomodate them. nate