This is an old revision of the document!

 R1# show control-plane host open-ports
 Active internet connections (servers and established)
 Prot   Local Address  Foreign Address          Service    State
  tcp            *:23              *:0           Telnet   LISTEN
  tcp            *:80              *:0        HTTP CORE   LISTEN
  tcp           *:179              *:0              BGP   LISTEN
  tcp           *:179   10.0.7.2:43962              BGP ESTABLIS
  tcp            *:23   10.0.7.2:18036           Telnet ESTABLIS
  udp            *:67              *:0    DHCPD Receive   LISTEN
  udp            *:68              *:0     BootP client   LISTEN
  udp           *:123              *:0              NTP   LISTEN

Notes:

This show command does not display non-TCP/UDP servers (OSPF, EIGRP, RSVP) or even some UDP-based services (RIP).

Policy/QoS

 policy-map 3GbE
    class class-default
    police cir 3000000000 bc 562500000 conform-action transmit
 exceed-action drop     violate-action drop

Alias

To display IP addresses assigned to router's interfaces (excluding interfaces with no IP address) use show ip interface brief | exclude unassigned command.

Here is a sample printout:

C1#show ip int brief | excl unassigned  
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            172.16.0.1      YES NVRAM  up                    up      
Serial1/0                  10.0.7.17       YES NVRAM  up                    up      
Loopback0                  10.0.1.1        YES NVRAM  up                    up      
Tunnel0                    192.168.0.1     YES manual up                    up

You could define an alias to create a new IOS command generating this printout, for example, alias exec ipconfig show ip interface brief | exclude unassigned.

List of useful aliases

alias exec ifconfig show ip interface brief | exclude unassigned
alias exec sofn show ip ospf neighbor
alias exec proc show processes cpu | exclude 0.00%__0.00%__0.00%

Level 1 Headline

interface FastEthernet0/5
description IP PHONE x1014 & HOST 10.1.20.5
switchport access vlan 20
switchport trunk encapsulation dot1q
switchport trunk native vlan 20
switchport trunk allowed vlan none
switchport mode access
switchport nonegotiate
switchport block multicast
switchport block unicast
switchport voice vlan 101
switchport port-security
switchport port-security maximum 3
switchport port-security aging time 10
switchport port-security aging type inactivity
no ip address
ip access-group ip-device-list in
mls qos trust device cisco-phone
mls qos trust dscp
dot1x port-control auto
dot1x guest-vlan 999
dot1x reauthentication
mac access-group mac-device-list in
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree bpduguard enable
spanning-tree guard root
!
interface FastEthernet0/6
description *** UNUSED Port ***
switchport access vlan 999
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan none
switchport mode access
switchport nonegotiate
switchport block multicast
switchport block unicast
switchport port-security
switchport port-security aging time 10
switchport port-security aging type inactivity
no ip address
ip access-group ip-device-list in
shutdown
mls qos cos override
storm-control broadcast level 0.00
storm-control multicast level 0.00
storm-control unicast level 0.00
dot1x port-control force-unauthorized
dot1x guest-vlan 999
dot1x host-mode multi-host
mac access-group mac-device-list in
no cdp enable
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree bpduguard enable
spanning-tree guard root

bba-group pppoe vpn1 
 virtual-template 1 
 sessions per-vc limit 1 (1 max number of vpdn session per-vc)
 sessions per-mac limit 1 ( 1 max number of vpnd session per-mac)
 sessions per-mac throtlle ...