Cisco WS-C3550-12G Software Configuration Manual page 552

Configuring IP Addressing
You can display specific statistics, such as the contents of IP routing tables, caches, and databases; the
reachability of nodes; and the routing path that packets are taking through the network.
the privileged EXEC commands for displaying IP statistics.
Table 22-4 Commands to Display Caches, Tables, and Databases
Command
show arp
show hosts
show ip aliases
show ip arp
show ip interface [interface-id]
show ip irdp
show ip masks address
show ip redirects
show ip route [address [mask]] | [protocol]
show ip route summary
These are examples of outputs of commands used for displaying caches, tables, and databases.
Switch# show arp
Protocol
Internet
Internet
Internet
Internet
Internet
Internet
Internet
Internet
Internet
Internet
Internet
Internet
Switch# show hosts
Default domain is a,b,c
Name/address lookup uses static mappings
Host
Switch# show ip aliases
Address Type
Interface
Interface
Interface
Switch# show ip masks
Supernet masks
255.252.0.0
0.0.0.0
Catalyst 3550 Multilayer Switch Software Configuration Guide
22-22
Purpose
Display the entries in the ARP table.
Display the default domain name, style of lookup service, name server hosts,
and the cached list of host names and addresses.
Display IP addresses mapped to TCP ports (aliases).
Display the IP ARP cache.
Display the IP status of interfaces.
Display IRDP values.
Display the masks used for network addresses and the number of subnets
using each mask.
Display the address of a default gateway.
Display the current state of the routing table.
Display the current state of the routing table in summary form.
Address Age (min)
10.1.2.3
172.20.136.9 178
172.20.250.42 207
120.20.30.1
172.20.139.152 159
172.20.139.130
172.20.141.225
172.20.135.204 227
172.20.135.202
172.20.135.197 230
172.20.135.196 214
172.20.135.193
Flags
IP Address
10.1.2.3
120.20.30.1
172.20.135.202
Reference count
1
1
Hardware Addr Type
- 0002.4b29.2e00 ARPA
0030.19c6.54e1 ARPA
0030.19c6.54e1 ARPA
- 0002.4b29.2e00 ARPA
0030.19c6.54e1 ARPA
24 0030.19c6.54e1 ARPA
5 0030.19c6.54e1 ARPA
0002.4b29.4400 ARPA
- 0002.4b29.2e00 ARPA
0002.4b28.ce80 ARPA
0002.4b28.ce00 ARPA
58 0030.19c6.54e1 ARPA
Age Type Address(es)
Port
Chapter 22 Configuring IP Unicast Routing
Table 22-4
Interface
GigabitEthernet0/10
Vlan1
Vlan1
Vlan27
Vlan1
Vlan1
Vlan1
Vlan1
Vlan1
Vlan1
Vlan1
Vlan1
78-11194-03
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