Well. Things become better.

Now the eth0 (the external port) is 192.168.1.113,
which is assigned by running dhclient.

The eth1 (the internal port) is 192.168.2.1, which is
assigned by myself.

I can now ping the internet and LAN from my route.
I can also ping 2.1 from LAN

But I can't ping the internet from LAN.

The follows are the things you may want to check

Please help.

Kind Regards,

Liumei

*******************************************************

Linux myrouter 2.2.16 #1 Sun Jun 11 11:33:38 CDT 2000
i386 unknown



1: lo: <LOOPBACK,UP> mtu 3924 qdisc noqueue 
    link/loopback 00:00:00:00:00:00 brd
00:00:00:00:00:00
    inet 127.0.0.1/8 brd 127.255.255.255 scope global
lo
2: brg0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop 
    link/ether fe:fd:0b:4b:6b:99 brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc
pfifo_fast qlen 100
    link/ether 00:c0:df:25:e4:b6 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.113/24 brd 192.168.1.255 scope
global eth0
4: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc
pfifo_fast qlen 100
    link/ether 00:c0:df:25:e4:b0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.1/24 brd 192.168.2.255 scope global
eth1



192.168.2.0/24 dev eth1  proto kernel  scope link  src
192.168.2.1 
192.168.1.0/24 dev eth0  proto kernel  scope link  src
192.168.1.113 
default via 192.168.1.254 dev eth0 



Module         Pages    Used by
ip_masq_mfw             3076   0 (unused)
ip_masq_portfw          2296   0 (unused)
ip_masq_autofw          2356   0 (unused)
ip_masq_user            2636   0 (unused)
ip_masq_cuseeme          852   0 (unused)
ip_masq_vdolive         1068   0 (unused)
ip_masq_raudio          2820   0 (unused)
ip_masq_quake           1108   0 (unused)
ip_masq_irc             1300   0 (unused)
ip_masq_ftp             2352   0 (unused)
rtl8139                11528   2




Chain input (policy ACCEPT: 10 packets, 1321 bytes):
 pkts bytes target     prot opt    tosa tosx  ifname  
  mark       outsize  source               
destination           ports
    0     0 ACCEPT     all  ------ 0xFF 0x00  lo      
                      0.0.0.0/0            0.0.0.0/0  
          n/a
    0     0 DENY       all  ------ 0xFF 0x00  eth0    
                      192.168.2.0/24       0.0.0.0/0  
          n/a
    0     0 DENY       all  ------ 0xFF 0x00  eth0    
                      0.0.0.0/0           
192.168.2.0/24        n/a
    0     0 DENY       all  ------ 0xFF 0x00  eth1    
                      255.255.255.255      0.0.0.0/0  
          n/a
    0     0 DENY       all  ------ 0xFF 0x00  eth1    
                      0.0.0.0/0            0.0.0.0    
          n/a
    0     0 DENY       all  ------ 0xFF 0x00  eth1    
                      224.0.0.0/3          0.0.0.0/0  
          n/a
Chain forward (policy ACCEPT: 0 packets, 0 bytes):
 pkts bytes target     prot opt    tosa tosx  ifname  
  mark       outsize  source               
destination           ports
    4   240 ACCEPT     all  ------ 0xFF 0x00  eth0    
                      192.168.2.0/24       0.0.0.0/0  
          n/a
    0     0 ACCEPT     all  ------ 0xFF 0x00  eth0    
                      0.0.0.0/0           
192.168.2.0/24        n/a
    0     0 MASQ       all  ------ 0xFF 0x00  eth1    
                      192.168.2.0/24       0.0.0.0/0  
          n/a
Chain output (policy ACCEPT: 2 packets, 168 bytes):
 pkts bytes target     prot opt    tosa tosx  ifname  
  mark       outsize  source               
destination           ports
    0     0 ACCEPT     all  ------ 0xFF 0x00  lo      
                      0.0.0.0/0            0.0.0.0/0  
          n/a
    4   240 DENY       all  ------ 0xFF 0x00  eth0    
                      192.168.2.0/24       0.0.0.0/0  
          n/a
    0     0 DENY       all  ------ 0xFF 0x00  eth0    
                      0.0.0.0/0           
192.168.2.0/24        n/a




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