Default route

R1(config)#ip route 0.0.0.0 0.0.0.0 s0/0/1 or
R1(config)#ip route 0.0.0.0 0.0.0.0 200.0.0.2


Send all packets destined for networks not in my routing table to 200.0.0.2 or out interface s0/0/1
**Normally used for connection to ISP

Juniper


set routing-options static route 0.0.0.0/0 next-hop 200.0.0.2