You can optionally precede the primitive with the keyword srcdst to specify that you are only interested in source or destination addresses. ![]() you cant use and as that will only capture packets where all conditions are fulfilled, which will never be the case (think about the src ip and dst ip of a packet). # tcpdump -i eth0 host 192.168.2.102 -U -s0 -w /tmp/dump.txt I have tried to enter them as by stringing together 'host 10.128.xx.xx and host 10.128.xx.xx. To capture all packets from a specific host on the network: Tcpdump: verbose output suppressed, use -v or -vv for full protocol decode ![]() Below is a brief overview of the libpcap filter languageâs syntax. Wireshark capture filters are written in libpcap filter language. To capture all packets on the WAN (the below assumes that interface eth1 is the WAN interface): Wireshark supports limiting the packet capture to packets that match a capture filter. tcpdump relies on libcap, therefore it can produce standard pcap analysis files which may be processed by other tools. It may be used to capture packets on the fly and/or save them in a file for later analysis. Tcpdump is a network capture and analysis tool.
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