You might want to try:
echo 1 > /proc/sys/net/ipv4/ip_forward
Also I noticed that the routing for eth0 is in the routing table twice,
this seems a bit weird. If the above command doesn't fix it, try taking
down the card (ifdown eth0) and bring it back up (ifup eth0) to see if
this clears up those routes. Or you could use the "route" command, but
I know that I try to avoid it :-)
Nathan Callahan
On Friday, June 1, 2001, at 01:47 PM, Abiel Reinhart wrote:
> After reformatting my system and upgrading to Linux Mandrake 8.0 from
> 7.2, I am unable to get IP masquerading to function. I was able to get
> it working with 7.2 and with Redhat 7.0 and earlier, with the same
> hardware configuration and client configuration I am using now. I am
> using kernel 2.2.19 (my modem driver does not function with the 2.4.x
> series), with all masquerading related options enabled.
>
> I am using a ppp modem connection, with a dynamically assigned IP.
>
> Linux router: 192.168.0.1
> Windows 2000 client: 192.168.0.2 (worked with Mandrake 7.2, so already
> configured.)
>
> netstat -rn:
> Kernel IP routing table
> Destination Gateway Genmask Flags MSS Window irtt
> Iface
> 12.7.120.251 0.0.0.0 255.255.255.255 UH 0 0 0
> ppp0
> 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth0
> 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth0
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0
> lo
> 0.0.0.0 12.7.120.251 0.0.0.0 UG 0 0 0
> ppp0
>
> ipchains -nL:
> Chain input (policy ACCEPT):
> Chain forward (policy DENY):
> target prot opt source destination
> ports
> MASQ all ------ 192.168.0.0/24 0.0.0.0/0 n/a
> Chain output (policy ACCEPT):
>
> ifconfig:
> eth0 Link encap:Ethernet HWaddr 00:20:78:10:1D:D6
> inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:9 errors:0 dropped:0 overruns:0 frame:0
> TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> RX bytes:1010 (1010.0 b) TX bytes:264 (264.0 b)
> Interrupt:5 Base address:0xe000
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> UP LOOPBACK RUNNING MTU:3924 Metric:1
> RX packets:44 errors:0 dropped:0 overruns:0 frame:0
> TX packets:44 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:3248 (3.1 Kb) TX bytes:3248 (3.1 Kb)
>
> ppp0 Link encap:Point-to-Point Protocol
> inet addr:12.7.121.89 P-t-P:12.7.120.251
> Mask:255.255.255.255
> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1518 Metric:1
> RX packets:213 errors:0 dropped:0 overruns:0 frame:0
> TX packets:214 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:10
> RX bytes:115513 (112.8 Kb) TX bytes:24652 (24.0 Kb)
>
> Local network connectivity is operating correctly (I can ping both
> ways). Tcpdump on the router shows incoming activity on eth0 when I try
> to access the Internet from 192.168.0.2, but no outgoing packets on
> device ppp0. I am unable to ping my ppp gateway (12.7.120.251).
>
> Any help is greatly appreciated. Thank you.
>
> Abiel Reinhart
> [EMAIL PROTECTED]
>
