Date: Fri, 13 Sep 1996 21:14:37 +0000 () From: Tim Pushor <timp@orion.ab.ca> To: dwhite@resnet.uoregon.edu Cc: questions@FreeBSD.org Subject: Re: <sigh> yet another PPP question. Message-ID: <Pine.NEB.3.92.960913211018.15672B-100000@rnd.orion.ab.ca> In-Reply-To: <Pine.BSI.3.94.960913180427.224C-100000@gdi.uoregon.edu>
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On Fri, 13 Sep 1996, Doug White wrote: > > I know this type of question has been asked plenty of times before, but > > searching back through the archives has lead me to believe there are many > > people out there that can't get a PPP server/router working properly. > > There are also many conflicting resolutions. > > I'm trying to get such a config up so we have it documented. That is a good thing! I would do such a thing as well if I could get it running. > > my setup: > > FreeBSD 2.1.5 Release, one Ethernet board. No routed, no gated, > > PPP,gateway,internet forwarding,proxyarp enabled. I have a hayes 28.8k > > modem running fine off this box. > > > I am directly connected to the internet via cisco 1004. I have small > > subnet of 25 ip's. I want to be able to dial in remotely, access my > > network, and get out onto the internet. > > Please describe this "small subnet of 25 IPs". Are they valid Internet > addresses, or are they excluded addresses (10.x.x.x, etc.)? Yes. They are valid Internet IP's. I am using them now. > > I have kernel ppp setup and running. I can dial in and establish a > > connection. I can ping the FreeBSD box, but cannot ping outside that box.. > > either to the local subnet or to the internet. > > > > Note, I am unable to provide an IP for my dialup system that is outside > > the range of the 25 ip's that I have now. Some people say that is > > necessary, some say it isn't..... > > I don't think so. If the dialup machine has a valid IP within the LAN the > PPP server is in, packet forwarding should take care of it and an explicit > route on the server to make sure the packets to the dialup machine gets > routed down the pipe. How should the route on the server be setup? I assumed since proxyarp was running, other machines would send packets destined to the remote end of the PPP to the server's NIC. I was hoping there was some sort of automagic thing happenening to forward the packets to the proper place. > > > I know proxyarp is running, as I can ping the *remote* machine from > > another machine on my local network, but not vise versa. > > You're not running filtering, are you? No I am not. > > Is there anything funky that has to be done with netmasks? I believe my > > netmask for my dialup machine is 255.255.255.0 while the netmask for my > > local subnet is 255.255.255.224?? I really don't know whats going on here, > > as using Windows NT RAS, the subnet mask on the dialup client is not the > > same as the physical subnet on which it belongs.. Geez, I am so confused. > > The netmasks should ALL match. Otherwise the broadcast addresses (among > other things) get messed up. Yes. I understand the purpose of subnets, but I also work alot with Windows NT, and all the dialup clients have subnet mask set to 255.255.0.0. I assume the server does something funky with them to/from the PPP link. Thanks for any help you can offer. This has been bothering me for some time now. Tim --- Tim Pushor, Technical Director Phone: (403) 246-0826 Orion Technologies Inc. FAX: (403) 242-7380 timp@orion.ab.ca Pager: (403) 229-8722
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