![]() ![]() If host is a name with multiple IP addresses, each address willīe checked for a match.So host means "source or destination address is ", and src is the same as src host, which means "source address is ".I.e., host will match any packets from or to, but src will match any packets from but will only match packets to if they are also from .Therefore, host will match more packets than will src. Any of the above host expressions can be prepended with the key. True if either the IPv4/v6 source or destination of the packet True if the IPv4/v6 source field of the packet is host. Which may be either an address or a name. Capture traffic to or from a range of IP addresses. Capture only traffic to or from IP address 172.18.5.4: host 172.18.5.4. The display filter can be changed above the packet list as can be seen in this picture: Capture Examples. True if the IPv4/v6 destination field of the packet is host, In the main window, one can find the capture filter just above the interfaces list and in the interfaces dialog. Other device types, the inbound and outbound qualifiers can be For some link layers, such as SLIP and the cooked'' Linux capture mode used for the any'' device and for some Qualifiers are only valid for IEEE 802.11 Wireless LAN link lay-Įrs. If there is no dir quali-įier, src or dst is assumed. E.g., src foo', dst netġ28.3', `src or dst port ftp-data'. Possible directions are src, dst, src or dst, src andĭst, addr1, addr2, addr3, and addr4. There is no type qualifier, host is assumed.ĭir qualifiers specify a particular transfer direction to and/orįrom id. Possible types are host, net, port and portrange. Type qualifiers say what kind of thing the id name or number refers There are three different kinds of qualifier: Usually consist of an id (name or number) preceded by one or more qual. To quote the pcap-filter man page (or the tcpdump man page for earlier versions of libpcap and tcpdump): The filter expression consists of one or more primitives. ![]()
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