github.com/projectdiscovery/mapcidr
Features • Install • Usage • Library • Join Discord
mapCIDR is developed to ease load distribution for mass scanning operations, it can be used both as a library and as independent CLI tool.
sbh, sbc)a, aa)match-ip)filter-ip)s, sr)count)ip-format)si, sp)t4, t6)go install -v github.com/projectdiscovery/mapcidr/cmd/mapcidr@latest
mapcidr -h
This will display help for the tool. Here are all the switches it supports.
INPUT:
-cl, -cidr string[] CIDR/IP/File containing list of CIDR/IP to process
PROCESS:
-sbc int Slice CIDRs by given CIDR count
-sbh int Slice CIDRs by given HOST count
-a, -aggregate Aggregate IPs/CIDRs into minimum subnet
-aa, -aggregate-approx Aggregate sparse IPs/CIDRs into minimum approximated subnet
-c, -count Count number of IPs in given CIDR
-t4, -to-ipv4 Convert IPs to IPv4 format
-t6, -to-ipv6 Convert IPs to IPv6 format
-ip-format, -if string[] IP formats (0,1,2,3,4,5,6,7,8,9,10,11)
-zpn, -zero-pad-n int number of padded zero to use (default 3)
-zpp, -zero-pad-permute enable permutations from 0 to zero-pad-n for each octets
FILTER:
-f4, -filter-ipv4 Filter IPv4 IPs from input
-f6, -filter-ipv6 Filter IPv6 IPs from input
-skip-base Skip base IPs (ending in .0) in output
-skip-broadcast Skip broadcast IPs (ending in .255) in output
-mi, -match-ip string[] IP/CIDR/FILE containing list of IP/CIDR to match (comma-separated, file input)
-fi, -filter-ip string[] IP/CIDR/FILE containing list of IP/CIDR to filter (comma-separated, file input)
MISCELLANEOUS:
-s, -sort Sort input IPs/CIDRs in ascending order
-sr, -sort-reverse Sort input IPs/CIDRs in descending order
-si, -shuffle-ip Shuffle Input IPs in random order
-sp, -shuffle-port string Shuffle Input IP:Port in random order
UPDATE:
-up, -update update mapcidr to latest version
-duc, -disable-update-check disable automatic mapcidr update check
OUTPUT:
-verbose Verbose mode
-o, -output string File to write output to
-silent Silent mode
-version Show version of the project
In order to get list of IPs for a give CIDR, use the following command.
mapcidr -cidr 173.0.84.0/24
____________ ___
__ _ ___ ____ / ___/ _/ _ \/ _ \
/ ' \/ _ '/ _ \/ /___/ // // / , _/
/_/_/_/\_,_/ .__/\___/___/____/_/|_| v0.5
/_/
projectdiscovery.io
[WRN] Use with caution. You are responsible for your actions
[WRN] Developers assume no liability and are not responsible for any misuse or damage.
173.0.84.0
173.0.84.1
173.0.84.2
173.0.84.3
173.0.84.4
173.0.84.5
173.0.84.13
173.0.84.14
173.0.84.15
173.0.84.16
It is also possible to get list of IP's for a given IP range, use the following command
$ echo "192.168.0.0-192.168.0.5" | mapcidr
192.168.0.0
192.168.0.1
192.168.0.2
192.168.0.3
192.168.0.4
192.168.0.5
In order to slice given CIDR or list of CIDR by CIDR count or slice into multiple and equal smaller subnets, use the following command.
mapcidr -cidr 173.0.84.0/24 -sbc 10 -silent
173.0.84.0/27
173.0.84.32/27
173.0.84.64/27
173.0.84.96/27
173.0.84.128/27
173.0.84.160/27
173.0.84.208/28
173.0.84.192/28
173.0.84.240/28
173.0.84.224/28
In order to slice given CIDR for equal number of host count in each CIDR, use the following command.
mapcidr -cidr 173.0.84.0/16 -sbh 20000 -silent
173.0.0.0/18
173.0.64.0/18
173.0.128.0/18
173.0.192.0/18
Note: it's possible to obtain a perfect split only when the desired amount of slices or hosts per subnet is a powers of two. Otherwise, the tool will attempt to automatically find the best split strategy to obtain the desired outcome.
In order to merge multiple CIDR ranges into smaller subnet block, use the following command.
$ mapcidr -cl cidrs.txt -aggregate
In order to list CIDR blocks for given list of IPs, use the following command.
$ mapcidr -il ips.txt -aggregate
It's also possible to perform approximated aggregations for sparse ips groups (only version 4). The final interval will contain contiguous ips not belonging to the input:
$ cat ips.txt
1.1.1.1
1.1.1.16
1.1.1.31
$ cat ips.txt | mapcidr -aggregate-approx
1.1.1.0/27
In order to list CIDR blocks for given IP Range (IPv4 | IPv6), use the following command.
$ mapcidr -cl 192.168.0.1-192.168.0.255 -aggregate
OR
$ echo 192.168.0.1-192.168.0.255 | mapcidr -aggregate
192.168.0.1/32
192.168.0.2/31
192.168.0.4/30
192.168.0.8/29
192.168.0.16/28
192.168.0.32/27
192.168.0.64/26
192.168.0.128/25
In order to match IPs from the given list of CIDR ranges, use the following command.
$ mapcidr -cidr 192.168.1.0/24 -mi 192.168.1.253,192.168.1.252
$ mapcidr -cidr 192.168.1.0/24 -mi ip_list_to_match.txt
In order to match IPs from the given list of CIDR ranges, use the following command.
$ mapcidr -cidr 192.168.1.224/28 -fi 192.168.1.233,192.168.1.234
$ mapcidr -cidr 192.168.1.224/28 -fi ip_list_to_filter.txt
In order to represent given IP into multiple formats, -if 0 flag can be used to display all the supported format values, and specific type of format can be displayed using specific index number as listed here, currently 10 unique formats are supported.
$ echo 127.0.1.0 | mapcidr -if 0 -silent
127.0.1.0
127.1
0177.0.01.0
0x7f.0x0.0x1.0x0
0x7f000100
0xabfa659dfa7f000100
281472812450048
111111111111111101111111000000000000000100000000
0x7f.0.01.0x0
::ffff:7f00:0100
%31%32%37%2E%30%2E%31%2E%30
127.000.001.000
IPv4 | IPv6 addresses can be converted from either the v6 to v4 notation or IPv4-mapped notation into IPv4 addresses using -t4 and -t6 to IPv4 and IPv6 respectively.
$ cat ips.txt
1.1.1.1
2.2.2.2
$ mapcidr -cl ips.txt -t6
00:00:00:00:00:ffff:0101:0101
00:00:00:00:00:ffff:0202:0202
Note:Not all IPv6 address can be converted to IPv4. You can only convert valid IPv4 represented IPv6 addresses. |
In order to count number of hosts for a given CIDR or list of CIDR, use the following command.
$ echo 173.0.84.0/16 | mapcidr -count -silent
65536
In order to get the IP address of ASN number, use the following command
echo AS15133 | mapcidr -silent
5.104.64.0
5.104.64.1
5.104.64.2
5.104.64.3
5.104.64.4
It's possible to use the library directly in your go programs. The following code snippets outline how to divide a cidr into subnets, and how to divide the same into subnets containing a certain number of hosts
package main
import (
"fmt"
"github.com/projectdiscovery/mapcidr"
)
func main() {
// Divide the CIDR into two subnets
subnets1 := mapcidr.SplitN("192.168.1.0/24", 2)
for _, subnet := range subnets1 {
fmt.Println(subnet)
}
// Divide the CIDR into two subnets containing 128 hosts each
subnets2 := mapcidr.SplitByNumber("192.168.1.0/24", 128)
for _, subnet := range subnets2 {
fmt.Println(subnet)
}
// List all ips in the CIDR
ips, _ := mapcidr.IPAddresses("192.168.1.0/24")
for _, ip := range ips {
fmt.Println(ip)
}
}
mapCDIR is made with 🖤 by the projectdiscovery team.
FAQs
Unknown package
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Socket's package search now displays weekly downloads for npm packages, helping developers quickly assess popularity and make more informed decisions.
Security News
A Stanford study reveals 9.5% of engineers contribute almost nothing, costing tech $90B annually, with remote work fueling the rise of "ghost engineers."
Research
Security News
Socket’s threat research team has detected six malicious npm packages typosquatting popular libraries to insert SSH backdoors.