> i downloaded ethereal for Red Hat Linux 6.1. I followed the instructions > to install it and ethereal ran well. However, I am not able to configure > filters. What do you mean by "I am not able to configure filters"? Do you mean that when you try to specify a capture filter it reports an error? If so, note that the man page does *not* describe the syntax of capture filters, it just says that Packet capturing is performed with the pcap library. The capture filter syntax follows the rules of the pcap library. This syntax is different from the display filter syntax. and later says: CAPTURE FILTER SYNTAX See manual page of tcpdump(8).
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