dialin server not routing/forwarding???

[Milen Dimitrov]

Thank you for the post!
I think I found what was the problem!

My dialin server had 2 network cards (2 network interfaces eth0 and eth1)
I removed eth1 and it worked!

Thanks again!

Edward wrote:

>
>
> Milen Dimitrov wrote:
>
>>
>>
>> Hi,
>> I just setup a dialin server on RedHat 9.
>> Dial in server is a member of LAN with common gateway 192.168.1.1.
>> I can browse internet from dial-in server and I can ping any other PC 
>> in the LAN.
>>
>>  From a windows PC i can dial in and connect to the server but I 
>> cannot browse Internet.
>> When connected to the dial-in server my windows PC has the following 
>> ipsettings and I cannot ping
>> any other PC in the LAN except dial in server (192.168.1.10) I'm 
>> connected to:
>> c:\>ipconfig /all
>> PPP adapter test2PPP:
>>        Connection-specific DNS Suffix  . :
>>        Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
>>        Physical Address. . . . . . . . . : 00-53-45-00-00-00
>>        DHCP Enabled. . . . . . . . . . . : No
>>        IP Address. . . . . . . . . . . . : 192.168.1.171
>>        Subnet Mask . . . . . . . . . . . : 255.255.255.255
>>        Default Gateway . . . . . . . . . : 192.168.1.171
>>        DNS Servers . . . . . . . . . . . : 192.168.1.2
>>                                                      192.168.1.3
>>
>> As you see the IP and the gateway for my windows PC are the same - 
>> 192.168.1.171. Is this correct?
>>
>> My guess is that the linux Dial-in server doesn't route/forward 
>> packets from PPP  to the rest of the LAN?
>> How I can prove if it's true or not?
>> Which config files/log files to be check out?
>> Which tools I can use to debug it?
>>
>> Thank you for the help in advance!
>> Milen
>> ==================================
>> Please see some of config files bellow:
>> 1. /etc/sysctl.conf
>> contains the line:
>> --------------------------
>> net.ipv4.ip_forward = 1
>> --------------------------
>> so cat /proc/sys/net/ip4fw/ip_forward
>> shows "1"
>>
>> /etc/ppp/options
>> contains:
>> -----------------------
>> -detach
>> asyncmap 0
>> netmask 255.255.255.0
>> proxyarp
>> lock
>> crtscts
>> modem
>> noauth
>> ms-dns 192.168.1.1
>> ms-dns 192.168.1.1
>> ---------------------
>>
>> /etc/ppp/options.ttyS0
>> contains:
>> -----------------------
>> 192.168.1.10:192.168.1.171
>> -----------------------
>>
>
> I *THINK* you need to specify 'defaultroute' in your /etc/ppp/options 
> file to allow the ppp connection to change the computers default route 
> to run through your modem ppp connection.
>
> check what 'route -n' gives you while you're connected.
>
> Regards,
> Ed.
>
>
>