[X-Unix] Re: Networking "guru" needed, dialin PPP not working

[Pablo]

Thats odd...
I would advice you to write a script that every time you log in, build 
a dump of what you transmit from you computer this could help you to 
see where are the packets going. I think you should also try changing 
the ip range like i sayd before, but is you call so ... :). Using 
tcpdump will be enough to test this.
If you manage to guess whats wrong let me know. If you dont, fell free 
to send me the dump so i can take a look at it ( im not a guru, im just 
trying to help ).

Good luck


On Jul 12, 2005, at 8:31 AM, Timothy Luoma wrote:

>
> On Jul 11, 2005, at 4:49 PM, Pablo wrote:
>
>
>> Ok, im not a guru or nothing like it, but something is really wierd 
>> here, if you connect to the FreeBSD machine and it gives you an 
>> 192.168.1.x IP address then you will have 2 interfaces of the same 
>> machine ( the FreeBSD machine ) in the same network, I dont think 
>> that any machine can route that ,even if you set ip_forwarding it 
>> shouldnt work. Try changing the network IP address of you DHCP in the 
>> FreeBSD to something like 192.168.2.x and add a default route in the 
>> linksys router( the one that works as a router ) to 192.168.2.x to 
>> the FreeBSD machine.
>>
>
> I understand what you are saying, but the setup works perfectly about 
> 75% of the time.
>
> This is what I mean by 'If it failed consistently then I'd have some 
> idea of what to fix'.
>
> Last night I was online, got offline, couldn't get back on.
> This morning (after doing nothing more than waiting 6 hours since I 
> tried the last time), it worked on the first try.
>
> Here's the 'ifconfig' information from the FreeBSD machine when I am 
> dialed in:
>
> freebsd> ifconfig
>
> [ethernet card, LAN]
> fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         options=8<VLAN_MTU>
>         inet 192.168.1.200 netmask 0xffffff00 broadcast 192.168.1.255
>         inet6 fe80::211:11ff:feb5:636%fxp0 prefixlen 64 scopeid 0x2
>         ether 00:11:11:b5:06:36
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
>
> [modem, Powerbook dialed in]
> tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
>         inet 192.168.1.3 --> 192.168.1.4 netmask 0xffffffff
>         Opened by PID 28731
>
>
> freebsd> netstat -rn -f inet
> Routing tables
>
> Internet:
> Destination        Gateway                Flags    Refs      Use  
> Netif Expire
> default               192.168.1.1            UGS         0   111640   
> fxp0
> 127.0.0.1           127.0.0.1                  UH          0     1757  
>   lo0
> 192.168.1           link#2                     UC          0        0  
>  fxp0
> 192.168.1.1        00:06:25:bd:1b:4b  UHLW        1    17229   fxp0    
> 719
> 192.168.1.4        192.168.1.3            UH          0     3983   tun0
> 192.168.1.4        00:11:11:b5:06:36  UHLS2       0        0   fxp0
> 192.168.1.31      00:11:11:36:90:93  UHLW        0     2630   fxp0   
> 1150
> 192.168.1.33      00:0f:1f:26:8f:0a      UHLW        0      438   fxp0 
>   1033
> 192.168.1.255    ff:ff:ff:ff:ff:ff              UHLWb       0     2914 
>   fxp0
>
>
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