Default route CCNA lab
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Lab 14
Default Static Route Configuration
Select a router tab and begin configuring
Lab Tasks
Branch — Fa0/0 (LAN): 192.168.1.1/24
Branch — Fa0/1 (WAN): 10.0.0.1/30
ISP — Fa0/0 (WAN): 10.0.0.2/30
ISP — Fa0/1 (Internet): 203.0.113.1/24
Branch — Default route 0.0.0.0/0 via 10.0.0.2
Verify default route with show ip route
Ping 203.0.113.1 from Branch — success
Command Guide
Branch — interface config:
int fa0/0 → ip add 192.168.1.1 255.255.255.0
int fa0/1 → ip add 10.0.0.1 255.255.255.252
Default route:
ip route 0.0.0.0 0.0.0.0 10.0.0.2
ISP — interface config:
int fa0/0 → ip add 10.0.0.2 255.255.255.252
int fa0/1 → ip add 203.0.113.1 255.255.255.0
Verify & Test:
show ip route
ping 203.0.113.1
int fa0/0 → ip add 192.168.1.1 255.255.255.0
int fa0/1 → ip add 10.0.0.1 255.255.255.252
Default route:
ip route 0.0.0.0 0.0.0.0 10.0.0.2
ISP — interface config:
int fa0/0 → ip add 10.0.0.2 255.255.255.252
int fa0/1 → ip add 203.0.113.1 255.255.255.0
Verify & Test:
show ip route
ping 203.0.113.1
Key Concept
A default route is
the "gateway of last
resort" — used when no
specific route matches.
Syntax:
ip route
0.0.0.0 0.0.0.0
Appears as S* in
the routing table.
the "gateway of last
resort" — used when no
specific route matches.
Syntax:
ip route
0.0.0.0 0.0.0.0
Appears as S* in
the routing table.
Branch Router (1841)
ISP Router (1841)
Branch>