Linux: ping using specific gateway interface or source IP address

ping ip-address
ping domain-name
ping www.unified-bits.com
ping 1.1.1.1
ping [options] destination
ping [options] [IP|hostname]

ping -I interface destination
ping -I eth0 www.vhome.locl
ping -I tun0 10.10.10.10
ping -I br0 10.32.16.10

ifconfig
ifconfig -a