Date: Fri, 3 Aug 2001 18:18:43 From: gjukema@jukeware.com To: questions@freebsd.org Subject: Re: unable to ping through WAN Message-ID: <20010804012130.A485037B407@hub.freebsd.org>
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Hi Fernando, > snip < > > The sobnet mask is covered in both books. In short, all it does is say > how many bit of the IP address are part off the "network addr" and how > many are the "host addr". > > In your case, if the mask were 255.255.0.0, the FreeBSD box would think > 10.10.10.0 and 10.10.20.0 are the same net, so instead of forwarding > the packet to the router, it would ARP trying to resolve the MAC of > the destination host. Since the host is on anoter net, it would never > respond and the FBSD box would time out. > > When you fixed the mask, the bsd box could tell that the destination was in > another net, and forwarded it to the router > > Hope this helps. Very much so. Thank you, this is exactly the confirmation and explanation I needed. I appretiate your time, and advice on the literature. I'll be researching "TCP/IP Illustrated, Vol. 1" very shortly. Geoff To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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