WAN Access Problems
325
To check for proper configuration on Windows, issue the ipconfig /all
command from a DOS prompt. Here is a sample:
1 Ethernet adapter :
Description . . . . . . . . : ELPC3R Ethernet Adapter
Physical Address. . . . . . : 00-A0-24-A5-06-57
DHCP Enabled. . . . . . . . : No
IP Address. . . . . . . . . : 172.16.50.130
Subnet Mask . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . : 172.16.50.1
Primary WINS Server . . . . :
Secondary WINS Server . . . :
Lease Obtained. . . . . . . :
Lease Expires . . . . . . . :
C:\WINDOWS>
The way to check for a default gateway on a Cisco router is to use the
show ip route
command. The output follows:
Router_C#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M -
mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF
inter area
E1 - OSPF external type 1, E2 - OSPF external type 2,
E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, *
- candidate default
U - per-user static route
Gateway of last resort is 172.16.50.2 to network 10.1.2.0
172.16.0.0/16 is variably subnetted, 2 subnets, 2
masks
C 172.16.50.0/24 is directly connected, Ethernet0/0
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