Linux networking – Descubriendo vecinos en la red

arp-scan -I eth1 192.168.0.0/24 10.0.0.0/8

nmap -sP 192.168.0.0/24 10.0.0.0/8

fping -g -r1 -s 192.168.0.0/24

arp-scan --interface=eth1 --localnet

for ip in $(seq 1 254); do ping -c1 -w1 192.168.0.$ip &>/dev/null; [ $? -eq 0 ] && echo "192.168.0.$ip"; done

for ip in 192.168.0.{1..254}; do if ping -c1 -w1 $ip &>/dev/null; then echo $ip; fi done

LAN IP

hostname -Iip

ifconfig | grep 'eth0' | tr -s ' ' | cut -d ' ' -f5
ifconfig | grep 'eth1' | tr -s ' ' | cut -d ' ' -f5

cat /sys/class/net/eth0/address
cat /sys/class/net/eth1/address

Router

netstat -r

route -n

traceroute -m 1 -N 1 1.2 | grep ms | perl -nle'/\((\S+)/&&print$1' | tr -d \)

Por favor consulte:

• http://360percents.com/posts/bash-script-for-checking-online-hosts-in-domain/
• http://linuxconfig.org/bash-scripts-to-scan-and-monitor-network
• http://godsyn.com/2010/07/a-simple-bash-script-to-show-network-ips-and-connectivity/
• http://www.plugged.in/linux/getting-network-information-in-bash-scripts.html