Date: Sun, 15 Jul 2001 03:30:02 -0700 (PDT) From: Brian Somers <brian@Awfulhak.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/28974: PPPoE software fails when SOCK_RAW employed Message-ID: <200107151030.f6FAU2W12065@freefall.freebsd.org>
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The following reply was made to PR kern/28974; it has been noted by GNATS. From: Brian Somers <brian@Awfulhak.org> To: Brad Laue <brad@brad-x.com> Cc: Brian Somers <brian@Awfulhak.org>, FreeBSD-gnats-submit@FreeBSD.ORG, roman@xpert.com, brian@Awfulhak.org Subject: Re: kern/28974: PPPoE software fails when SOCK_RAW employed Date: Sun, 15 Jul 2001 11:22:33 +0100 Hi, I've marked hping as BROKEN for the time being as email addressed to the maintainer bounces. I'm not (yet) convinced that this is a PPPoE problem, but I'm willing to be proven wrong. It's possible that nmap doesn't work with POINT2POINT interfaces but does with broadcast interfaces. I'll have a look at installing nmap myself in the near future and follow up. Cheers. > Hping is an example of the tool I used to further troubleshoot the > problem, not the problem itself; PPPoE is definitely broken, and has been > reported as such on several occasions, but in the wrong place. > > The problem is that what I used as a diagnostic is itself flawed to the > point of not working with PPPoE based connections. > > I would still like to further understand why programs such as nmap > are having such a difficult time working with a networking > implementation that should by all rights be transparent. > > My only surmise to date is that since NetGraph is dealing with Raw > Sockets to encapsulate PPPoE, it is interfering with userspace programs' > ability to do same. > > I am however glad to have been able to point out the problematic port, > being overproductive is a good thing. :) > > Here is an example of the problem as related by another person. I've had > this identical issue, and have not yet corrected it: > > http://groups.google.com/groups?hl=en&safe=off&ic=1&th=7866b9324b3e2b97,2&seekm=002e01c0b710%24d3306da0%242ac67fd8_blah2%40ns.sol.net#p > > The surmise is misconfigured libcap, but this is nullified by the user's > claim that nmap functions over interfaces not covered by PPPoE, also my > experience. > > Please continue to consider this a PPPoE issue, but let me know if you'd > like me to submit a PR regarding hping itself. > > Thanks, > Brad -- Brian <brian@freebsd-services.com> <brian@Awfulhak.org> http://www.freebsd-services.com/ <brian@[uk.]FreeBSD.org> Don't _EVER_ lose your sense of humour ! <brian@[uk.]OpenBSD.org> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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