ngrep
Network grep
ngrep strives to provide most of GNU grep's common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular or hexadecimal expressions to match against data payloads of packets. It currently recognizes IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw across Ethernet, PPP, SLIP, FDDI, Token Ring and null interfaces, and understands BPF filter logic in the same fashion as more common packet sniffing tools, such as tcpdump and snoop.
There is no official package available for openSUSE Leap 15.6Distributions
openSUSE Tumbleweed
openSUSE Leap 15.6
SUSE SLE-15-SP2
SUSE SLE-15-SP1
SUSE SLE-12-SP5
Unsupported distributions
The following distributions are not officially supported. Use these packages at your own risk.