我正在使用下面的tcpdump命令：
tcpdump -w net75.out -s 0 host 65.207.95.222 我想将单个主机上的filter更改为以下子网中的所有地址：
65.192.0.0/10
我一直无法弄清楚如何指定一个tcpdumpfilter来做到这一点。
请指教。
试试这个。
tcpdump -w net75.out -s 0 net 65.192.0.0/10
man pcap-filter（7）
dst net net True if the IPv4/v6 destination address of the packet has a net- work number of net. Net may be either a name from the networks database (/etc/networks, etc.) or a network number. An IPv4 network number can be written as a dotted quad (eg, 192.168.1.0), dotted triple (eg, 192.168.1), dotted pair (eg, 172.16), or single number (eg, 10); the netmask is 255.255.255.255 for a dotted quad (which means that it's really a host match), 255.255.255.0 for a dotted triple, 255.255.0.0 for a dotted pair, or 255.0.0.0 for a single number. An IPv6 network number must be written out fully; the netmask is ff:ff:ff:ff:ff:ff:ff:ff, so IPv6 "network" matches are really always host matches, and a network match requires a netmask length. src net net True if the IPv4/v6 source address of the packet has a network number of net. net net True if either the IPv4/v6 source or destination address of the packet has a network number of net. net net mask netmask True if the IPv4 address matches net with the specific netmask. May be qualified with src or dst. Note that this syntax is not valid for IPv6 net. net net/len True if the IPv4/v6 address matches net with a netmask len bits wide. May be qualified with src or dst.