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Mark Jawdoszak (MarkJ at logsysgroup dot com) wrote on 6/22/06, 1:25 AM: > It's just, we notice a speed decrease if we put a m0n0box in and its > <1GHz CPU, as it just cant pass the packets fast enough (that's some > things that are written in the manual). Are you referring to a VPN-specific speed decrease? Our two m0n0 boxes were put together by my predecessor, and they are likely sub-1GHz. They're the same PC hardware that was in place before performance started to suffer, though. The jump of 1.5 Mb with our T1 upgrade seemed like too small a window to push performance over such a cliff, which is why I hadn't suspected hardware was a factor. Chris Buechler (cbuechler at gmail dot com) wrote on 6/21/06, 9:20 AM: > Try iperf and see what kind of throughput you get. iperf looks terrific. 2.0.2 had compilation trouble on Mac OS X, but 1.7.0 built fine. I ran five tests to and from the office, with and without the VPN, and pretty well corroborated my earlier results. In both cases from home to office, I'm coming within the ballpark of the 768 Kb cap imposed by my enlightened cable provider. The VPN looks fractionally slower, but far from a problem. Home to office, with VPN: office-reported home-reported 688 Kbits/sec 684 Kbits/sec 695 Kbits/sec 617 Kbits/sec 695 Kbits/sec 630 Kbits/sec 683 Kbits/sec 679 Kbits/sec 684 Kbits/sec 449 Kbits/sec Home to office, without VPN: office-reported home-reported 706 Kbits/sec 698 Kbits/sec 702 Kbits/sec 559 Kbits/sec 706 Kbits/sec 702 Kbits/sec 707 Kbits/sec 703 Kbits/sec 704 Kbits/sec 695 Kbits/sec Coming back the other way the problem is apparent. Outbound bandwidth at the office is capped at 3 Mb, which I can approach when I open up port 5001 and circumvent the VPN. Office to home, with VPN: office-reported home-reported 44.9 Kbits/sec 45.1 Kbits/sec 24.5 Kbits/sec 24.5 Kbits/sec 19.8 Kbits/sec 19.9 Kbits/sec 35.6 Kbits/sec 35.8 Kbits/sec 33.5 Kbits/sec 33.6 Kbits/sec Office to home, without VPN: office-reported home-reported 2.77 Mbits/sec 2.79 Mbits/sec 2.51 Mbits/sec 2.53 Mbits/sec 2.81 Mbits/sec 2.83 Mbits/sec 2.53 Mbits/sec 2.80 Mbits/sec 2.74 Mbits/sec 2.76 Mbits/sec So, if there's anything to be gleaned from the PPTP settings or logs, I'd appreciate any advice. In the meantime; I'll reiterate a request for some Soekris replacements for the PC boxes, and try to eliminate the hardware from the picture. Thanks, -nat |