Date: Fri, 30 Mar 2001 22:06:10 -0800 From: Julian Elischer <julian@elischer.org> To: "Louis A. Mamakos" <louie@TransSys.COM> Cc: Brett Glass <brett@lariat.org>, freebsd-net@FreeBSD.ORG Subject: Re: Transition from modem PPP to PPPoE Message-ID: <3AC573D2.81D2BBA3@elischer.org> References: <4.3.2.7.2.20010330201802.00dc8f00@localhost> <200103310355.f2V3tf299146@whizzo.transsys.com>
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"Louis A. Mamakos" wrote: > > > while I'm not intimately familiar with PPPoE, it's obvious that > > it cannot use IP addresses for its underlying communication; it must use > > MAC addresses and have its own DLC mechanism. This suggests that its > > packets probably have a unique Ethertype. Does anyone know offhand what > > that type is, so that we can instruct the bridges to allow it through? > > (Currently, the bridges only allow TCP, UDP, ICMP, and ARP and block > > types such as IPX.) > > Yes, it uses two different registered ethernet types (which I/UUNET > paid $5000 to the IEEE to get) and they are (from RFC-2516): > > The ETHER_TYPE is set to either 0x8863 (Discovery Stage) or 0x8864 > (PPP Session Stage). > > See http://www.ietf.org/rfc/rfc2516.txt for more details on the protocol, if > you care. unless you are telebrazilia/3com in which case you use two totally different ethertypes just for the fun of it. > > louie > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message -- __--_|\ Julian Elischer / \ julian@elischer.org ( OZ ) World tour 2000-2001 ---> X_.---._/ v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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