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what is the meaning of netmask in pcap_compile() API?
From: "WANG Yong"<yongw () 21cn com>
Date: Sat, 29 Nov 2003 12:18:33 +0800
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 yongw () 21cn com 2003-11-29 - This is the TCPDUMP workers list. It is archived at http://www.tcpdump.org/lists/workers/index.html To unsubscribe use mailto:tcpdump-workers-request () tcpdump org?body=unsubscribe
Current thread:
- what is the meaning of netmask in pcap_compile() API? WANG Yong (Nov 28)
- Re: what is the meaning of netmask in pcap_compile() API? Guy Harris (Nov 28)