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]
