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Date:      Mon, 25 Aug 1997 13:12:36 -0700 (MST)
From:      Charles Mott <cmott@snake.srv.net>
To:        Craig <craig@theta.dyn.ml.org>
Cc:        questions@FreeBSD.ORG
Subject:   Re: FreeBSD as a LAN to Internet gateway
Message-ID:  <Pine.BSF.3.96.970825130810.8629A-100000@darkstar.home>
In-Reply-To: <3401DCA2.167EB0E7@ferraro.net>

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On Mon, 25 Aug 1997, Craig wrote:
> I am new to FreeBSD (I just installed it Friday) and I have been trying
> to set up a network with my FreeBSD machine as an Internet gateway.  I
> have read the tutorial at http://www.freebsd.org/tutorials/ppp/ and have
> confirmed that I followed the necessary steps.
> 
> I can easily make connections between computers within my network, but
> when I try to get traffic to the Internet, nothing works.  I have
> verified that packet forwarding is enabled and the initializes at boot.
> 
> Below is the tcpdump output from a computer named stentor attempting to
> ping he.net (or 207.33.3.2).

First of all, I'm not sure what all that netbios traffic below is about. 
If you are using user ppp, then you should do "tcpdump -n -i tun0".  That
will show the traffic actually going outside your local area network.  It
looks like you are dumping out your ethernet interface.  Also, are you
using "ppp -alias" or do you have a registered subnet?

> 
> 15:09:21.309164 stentor.ferraro.net.netbios-ns >
> 192.168.1.255.netbios-ns: udp 68
> 15:09:21.312862 0:40:5:4c:41:21 > 3:0:0:0:0:1 sap f0 ui/C len=44
>                          2c00 ffef 0100 0000 0000 0a00 0000 0000
>                          0000 0000 0000 0000 0000 0000 4a4f 4520
>                          2020 2020 2020 2020 2020 2003
> 15:09:22.088303 stentor.ferraro.net.netbios-ns >
> 192.168.1.255.netbios-ns: udp 68
> 15:09:22.209690 0:40:5:4c:41:21 > 3:0:0:0:0:1 sap f0 ui/C len=44
>                          2c00 ffef 0100 0000 0000 0a00 0000 0000
>                          0000 0000 0000 0000 0000 0000 4a4f 4520
>                          2020 2020 2020 2020 2020 2003
> 15:09:22.883083 stentor.ferraro.net.netbios-ns >
> 192.168.1.255.netbios-ns: udp 68
> 15:09:23.257784 0:40:5:4c:41:21 > 3:0:0:0:0:1 sap f0 ui/C len=44
>                          2c00 ffef 0100 0000 0000 0a00 0000 0000
>                          0000 0000 0000 0000 0000 0000 4a4f 4520
>                          2020 2020 2020 2020 2020 2003
> 15:09:23.669735 stentor.ferraro.net.netbios-ns >
> 192.168.1.255.netbios-ns: udp 68
> 15:10:21.354658 stentor.ferraro.net.netbios-ns >
> 192.168.1.255.netbios-ns: udp 50
> 15:10:22.108746 stentor.ferraro.net.netbios-ns >
> 192.168.1.255.netbios-ns: udp 50
> 15:10:22.864608 stentor.ferraro.net.netbios-ns >
> 192.168.1.255.netbios-ns: udp 50
> 15:10:35.248136 stentor.ferraro.net > he.net: icmp: echo request
> 15:10:36.441001 stentor.ferraro.net > he.net: icmp: echo request
> 15:10:37.954249 stentor.ferraro.net > he.net: icmp: echo request
> 15:10:38.972695 stentor.ferraro.net > he.net: icmp: echo request
> 15:11:20.590660 0:40:5:4c:41:21 > 3:0:0:0:0:1 sap f0 ui/C len=170
>                          2c00 ffef 0800 0000 0000 0000 4e45 5420
>                          2020 2020 2020 2020 2020 201e 5354 454e
>                          544f 5220 2020 2020 2020 2000 ff53 4d42
>                          2500 00
> 15:11:20.648005 stentor.ferraro.net.netbios-dgm >
> 192.168.1.255.netbios-dgm: udp 208
> 




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