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Network
Parallel ICMP echo sweeps for CIDR ranges and host files.
overview
fping sends ICMP echo requests to many hosts in parallel and reports which answered. Expand a netmask or start/end range with -g, or read targets from -f.
Reach for it when an IP block must shrink to live addresses before a port scan or HTTP probe. Dead hosts stay out of later stages.
Trickest runs fping as a managed Network node that writes FILE and FOLDER results. Pair survivors with naabu or nmap for ports, or httpx for web probes. Prefer nmap -sn when you need richer host discovery in one tool.
source github.com/schweikert/fping
use cases
Pass a network and netmask with -g and fping expands it into every host, pings them in parallel, and returns the addresses that answered, trimming a /24 down to the machines that exist.
Feed a file of addresses with -f to check liveness across an inventory list at once, instead of looping ping over each entry in a script.
Run fping ahead of a port scanner or HTTP prober so the slower nodes only run against hosts that respond to ICMP, cutting wasted requests on an empty range.
Use the live-host list as a quick reachability snapshot for an IP range, the starting point for mapping which segments are populated.
reference
| Name | Type | Flag | Description |
|---|---|---|---|
| generate-list | STRING | -g | Generate a target list from an IP netmask or a starting and ending IP. |
| generate-from-file | FILE | -f | Read the list of targets from a file. This option can only be used by the root user. |
Showing key inputs. fping exposes 2 inputs in total.
example
# fping: expand a documentation CIDR and report live hostsfping -g 198.51.100.0/24198.51.100.10 is alive198.51.100.24 is alive198.51.100.55 is alive203.0.113.8 is alive203.0.113.44 is alive192.0.2.17 is alive# 6 hosts answered ICMP from the swept rangeguidance
Use fping to find which hosts in a CIDR or file answer ICMP before spending scanner time. It is a liveness sweeper, not a port or service scanner. Follow with naabu, nmap, or httpx.
Full host and port scanner. Its -sn host-discovery mode covers the same liveness check plus far more, at a higher cost per run.
Fast port scanner with a host-discovery step. Use it when you need open ports, not just whether the host answers ICMP.
HTTP prober, not an ICMP pinger. Run it after fping to classify live hosts that respond on web ports.
faq
related
Map an organization's network ranges from ASN data.
Validate public DNS resolvers against trusted baselines.
Probe a domain list for working HTTP and HTTPS servers.
A fast and multi-purpose HTTP toolkit that runs multiple probers with reliable, high-throughput results.
Expand, aggregate, and slice CIDR ranges into host lists.
Asynchronous SYN port scanner for wide IP ranges; bound runs with --rate and --excludefile.
An IP range feeds fping, which sweeps it with ICMP and passes the responding hosts to httpx for probing before they land as a queryable output.
Facts on this page come from the live Trickest tool library.