Hi All:

I am using libpcap to receive ISO8473 CLNP/802.2 LLC1 packets from network interface 
and I need to set some filter using pcap_compile() API. This API has a parameter named 
netmask. I suppose this is only useful when doing jobs related to TCP/IP, so in my 
case i can safely ignore it and set it any value.

Anybody who can explain the usage of this parameter? Many thanks!
 
                                 
        WANG Yong
[EMAIL PROTECTED]
          2003-11-29

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