From mboxrd@z Thu Jan  1 00:00:00 1970
From: "" <chenggh04@st.lzu.edu.cn>
Subject: Why the network is unreable?
Date: Sun, 05 Nov 2006 20:04:22 +0800
Message-ID: <362728262.14561@st.lzu.edu.cn>
Reply-To: chenggh04@st.lzu.edu.cn
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Hi:
    My network is like this:
    A(IP:192.168.0.2)          B(IP: 192.168.0.1)(IP:192.168.1.2) 
C(IP:192.168.1.1)
     (netmask:255.255.255.0)     255.255.255.0     255.255.255.0    
255.255.255.0
     (gw: 192.168.0.1)            gw : 192.168.1.1


   B is a machine with 2 network cards .
   At first I enable the /proc/sys/net/ipv4/ip_forward and set the default gw
192.168.1.1.
    Now, A ping B is ok and B ping C is ok. But when A ping C the network is
unreachable.
   I don't know why. Please help me.
   Best wishes.
   Thank you.
                                                 cheng