Network Simulator Supported Commands

List of Router/Switch/Workstation Commands

Sl. No.


Comments, if any.


access-list <list-num> {permit | deny} <source-ip-address> 

Only standard access list of the format given is supported.

access-list <100-199> {permit/deny} protocol source-addr [source-mask] [operator operand] destination-addr [destination-mask] [operator operand] Global command for extended access-lists
access-list <list-num> {permit/deny} protocol <source-addr> any operator operand  
access-list <list-num> {permit/deny} protocol <source-addr> any  
access-list <list-num> {permit/deny} protocol host <source-addr> <dest-addr><dest-mask>  
access-list <list-num> {permit/deny} protocol any any  
access-list <list-num>{permit/deny} protocol any host <dest-addr> operator operand  
access-list <list-num> {permit/deny} protocol host <source-addr> any operator operand  
access-list <list-num> {permit/deny} protocol <source-addr> <source-wmask> host <dest-addr>  
10 banner motd <banner>  
11 bandwidth <kilobits> Required bandwidth, in kilobits per second.
12 cdp advertise-v2  
13 cdp enable   
14 cdp run  
15 cdp holdtime <seconds>  
16 cdp timer <seconds>  
17 clear arp-cache  


clock rate <bps>

Desired clock rate in bits per second: 1200, 2400, 4800, 9600, 19200, 38400, 56000, 64000 etc.


config-register <value>

Hexadecimal or decimal value that represents the 16-bit configuration register value. It is used at the router start-up. The value range is from 0x0 to 0xFFFF (0 to 65535 in decimal). Normally, the default value is 0x2102

20 configure terminal  
21 copy running-config startup-config  
22 copy startup-config running-config  
23 description <string> Character string from 1 to 80 characters.
24 disconnect Terminates the suspended telnet session and then logout it.
25  copy running-config tftp: Running configuration file is copied to TFTP server
26  copy tftp: running-config Copies configuration file from TFTP server to new router
27  copy tftp: startup-config Copies configuration file from TFTP server to new router
28 debug ip packet   
29 disable   
30 disconnect  
31 disconnect <TELNET_ID>  
32  domain-name <domain_name> Assigns the domain-name to the client.
33  dns-server <IP_address> [IP_address_2......IP_address_8] Allows assigning upto 8 DNS server addresses to the client.
34  default-router <IP_address> [IP_address_2......IP_address_8] Allows assigning upto 8 default-gateway addresses to the client for this range of addresses.
35 enable  
36 enable password <password>  
37 enable secret <password>  
38 erase startup-config  
39  encapsulation dot1q <vlan id> Command for router in interface configuration mode.
40 encapsulation  <encapsulation-type> Only PPP/HDLC are supported at this time by the simulator.
ex: encapsulation hdlc
41  encapsulation framerelay [cisco][ietf]  
42 end   
43 exec-timeout <minutes> [seconds]  seconds is optional. 
44  frame-relay lmi-type <lmi_type> LMI type is specific to the entire interface,not to a VC.
45  frame-relay map<protocol-name> <ip-address> <dlci_num> It configures the manual resolution of PVC's.
46  frame-relay map<protocol-name> <ip-address> <dlci_num> broadcast  
47  frame-relay map<protocol-name> <ip-address> <dlci_num> broadcast cisco  
48  frame-relay map<protocol-name> <ip-address> <dlci_num> broadcast ietf  
49  frame-relay map<protocol-name> <ip-address> <dlci_num> cisco  
50  frame-relay map<protocol-name> <ip-address> <dlci_num> ietf  
51 hostname <host-name>  
52 interface ethernet 0  
53  interface fa <Port-number>  
54  interface fa <Slot-number>/<Port-number>  
55  interface fa <Port-number>.<Subint-number>  
56  interface fa <Slot-number>/<Port-number>.<Subint-number>  
57  interface loopback <port-number> Loop back interface numbers 0 to 9 are supported
58 interface serial 0   
59  ip access-group <named ACL> Interface sub command to enable named access-list
60 ip access-group <num> in  
61 ip access-group <num> out   
62  ip access-list extended <named ACL> Global command for Named Access-List
63 ip address <ip-address> <sub-net mask>   
64 ip default-network <ip-address>  
65 ip domain-lookup   
66 ip name-server<ip-address>  
67  ip nat inside source list <ANUM> pool <WORD>  
68  ip nat inside source static <ip-address> <ip-address>  
69  ip nat inside  
70  ip nat outside source static <ip-address> <ip-address>  
71  ip nat outside  
72  ip nat pool <WORD> <ip-address> <ip-address> netmask <ip-address>  
73  ip nat inside source list <num> interface <int> overload PAT command
74 ip route <prefix> <mask> {next-hop-ip-addr | interface-type} The command supported by the simulator are:
ip route <prefix> <mask> <next-hop-ip> and
ip route <prefix> <mask> serial 
75 ip route <ip-address>  
76 ip route<ip-address> <ip-address> <ip-address>  
77 ip route <ip-address> <ip-address> serial 0 Not supported at this time
78 ip host <name> <ip-address> Complete syntax for this command: ip host name [tcp-port-number] address1 [address2...address8]
79 ip routing  
80 ipx routing  
81  ipv6 unicast-routing Enables the forwarding of ipv6 unicast datagrams globally on the router. 
82  ipv6 router rip <word> Configures IPV6 RIP routing process and enters router configuration mode for the IPV6 RIP routing process. 
83  ipv6 router eigrp <as-number>  Enters router configuration mode and creates an EIGRP IPV6 routing process. The "AS" stands for Autonomous System number. 
84  ipv6 address <ipv6-prefix/prefix-length> Assigns ipv6 address to an interface.
85  ipv6 enable Enables ipv6 processing on the interface.
86  ipv6 rip <name> enable Enables specified IPV6 RIP routing process on an interface.
87  ipv6 eigrp <as-number>  Enables EIGRP for IPV6 on a specified interface. The "AS" stands for Autonomous System number. 
88  ipv6 ospf <process-id> area <area-id> Enables OSPF for IPV6 on a specified interface. 
ip dhcp pool <pool_name> Creates an addressing pool
ip address dhcp Command to use DHCP to acquire its IP address


ip cef Enables CEF on the cisco router
92 keepalive <seconds>  
93 line aux  
94 line console 0   
95 line vty  
96 logging synchronous  
97 login  
98 logout   
98 lease <days [hours][min] | infinite> Specifies the duration of the lease
100 network <ip-address>  Used with routing rip, igrp etc.
 101  network <ip-address> < ip-address > area <Area-id> (For ospf routing)
102 no cdp enable  
103 no ip address  
104 no ip routing  
105 no cdp run  
106 no frame map <protocol name> <ip-address> <dlci_num>  
107 no frame map<protocol-name> <ip-address> <dlci_num> broadcast  
108  no frame map<protocol-name> <ip-address> <dlci_num> cisco  
109  no frame map<protocol-name> <ip-address> <dlci_num> ietf  
110 no ip domain-lookup  
111 no ip nat pool <WORD><ip-address> <ip-address> netmask <mask-addr> Nat pool related command
112 no ip nat inside source list <ANUM> pool <WORD>  
113 no ip nat inside source static <ip-address> <ip-address>  
114 no router eigrp  


no router ospf  
116 no router rip  
117 no shutdown  
118 no ip address dhcp Unconfigures any address that was acquired


mpls label protocol ldp Configures LDP on all interfaces


mpls ip Configure MPLS hop-by-hop forwarding for a router interface.
121 password <password>   
122 ping <host-name>  
123 ping <ip-address>  
124 ping ipv6 <ipv6-address> Used to test the connectivity.


ping mpls ipv4 <address> Used to test MPLS connectivity
126 reload  
127 resume <TELNET_ID>  
128 router eigrp <aut_sys>  
129 router ospf <proc_id> Process_id is locally significant and is used to differentiate different ospf processes running on a router.
130 router rip  
131 shutdown  
132 show access-list   
133 show arp Displays entries in the ARP table
134 show cdp neighbor   
135 show flash   
136 show history  
137 show frame-relay lmi Shows the detailed statistics regarding LMI.
138 show frame-relay map  
139 show frame-relay pvc <dlci_num> Shows all the frame relay PVC's terminated and their statistics at a specified router
140 show hosts  
141 show ip arp  
142 show ip eigrp neighbors detail  
143 show ip eigrp neighbors  
144 show ip eigrp topology  
145 show ip eigrp traffic  
146 show ip interface brief  
147 show ip interface  
148 show ip ospf interface  
149 show ip nat statistics  
150 show ip nat translations  
151 show ip ospf database  
152 show ip ospf neighbor detail   
153 show ip protocols Displays parameters and current state of the active routing protocol process.
154 show ip route  
155 show interfaces  
156 show interfaces ethernet 0  
157 show interfaces serial 0  
158 show interfaces loopback <Loopback_num> Loopback interface number,0 to 9 are supported
159 show protocols  
160 show running-config  
161 show sessions  
162 show startup-config   
163 show users Displays users connected to the router
164 show version   
165 show ipv6 rip Displays information about all current IPV6 RIP processes. 
166 show ipv6 interface <interface-name> Displays ipv6 interface configuration information. 
167 show ipv6 ospf  Displays general information about OSPF routing processes.
168 show ipv6 route Displays routes in the IPV6 routing table.
169 show ipv6 protocols Displays parameters and current state of the active IPV6 routing protocol processes. 
170 service dhcp Enables and disables the DHCP server feature on router
171 show ip dhcp binding To view the addresses assigned to clients on dhcp server


show mpls interface To verify that the interfaces are configured to use LDP.


show mpls forwarding-table shows MPLS forwarding table information


show mpls ldp neighbor Shows that the LDP session between routers was successfully established


show ip cef To display entries in the Cisco Express Forwarding Forwarding Information Base (FIB) or to display a summary of the FIB


show ip cef summary To display a summary of the IP Cisco Express Forwarding table
177 telnet <host-name>  
178 telnet <IP-address>  
179 traceroute <hostname> Lists all routers along path to destination and finds the routing problems if any.
180 traceroute <ip-address>  
181 traceroute ipv6 <ipv6-address> Traceroute command to determine path of a packet to its destination. 


traceroute mpls ipv4 <ipaddress> used to determine routes to destination
183 username <name> password <password>  
184 version 2 For RIPv2 routing
185 write erase  
186 write memory  
187 write terminal  
188 no auto-summary  
189 no network <ip addr> <ip addr> area <area id>  

List of Switch Commands Supported

Sl.No. commands Comments, if any.
1 banner motd <phrase>  
2 copy startup-config running-config  
3 configure terminal  
4 cdp advertise-v2  
5 copy running-config startup-config  
6 cdp holdtime <seconds>  
7 cdp timer <seconds>  
8 clock set hh:mm:ss <1-31> Month <2004-2035>  
9 cdp run  
10 duplex <duplex-type>  
11 description <phrase>  
12 disable  
13 enable  
14 erase startup-config  
15 enable secret <secret>  
16 enable password <password>  
17 end  
18 hostname <name>  
19 interface fastethernet <0-0>/<0-24> Depends on the switch type. For module 0, port 1 the command is interface fastethernet 0/1
20 ip default-gateway <ip-address>  
21  ip host<hostname> <ip-address>  
22  interface range fastethernet <0-0>/<0-12>  
23 interface vlan <vlan #> You can enter interface config mode.
example: interface vlan 1
(config-if)#ip address
24 ip name-server <ip-address>  
25 ip address <ip-address> <subnet mask> A switch can have one IP address. The IP address of the switch can be accessed only through ports that belong to the management VLAN. 
26 line vty 0 15  
27 line console 0  
28 login  
29 logout  
30  mac-address-table static <mac-address> vlan <valn_num> interface fastethernet <pnum>  
31  no ip address  
no spanning-tree vlan <vlan-id> Disables STP on a specified VLAN.
33  no shutdown It re-enables the interface when the interface is disabled.By default interfaces are enabled.
34  no switchport mode  
35  no switchport <port_security>  
36 password <password>  
37 reload  
38 show interfaces  
39 show history  
40  show mac-address-table Displays mac-address-table information
41 show version Display version information for the hardware  and firmware
show spanning-tree Displays spanning-tree statistics, including information about root bridge and port status.
show spanning-tree summary Displays summary of port states.
show spanning-tree vlan <vlan-id> Displays STP information for the specified VLAN.
45  show vlan Displays vlan information
46  show vlan-membership Displays vlan membership information
47  show vtp status Displays vtp status information
48 show startup-config  
49 show flash  
50 show running-config  
51 show ip interface brief  
52 shutdown Disables a port and shuts-down management vlan. no shutdown command enables a port.
53 snmp-server enable traps vtp  
spanning-tree vlan <vlan-id> Enables STP on a specified VLAN
spanning-tree vlan <vlan-id> root Configures the root switch.
spanning-tree vlan <vlan-id> priority <priority-num> Configures switch priority of a VLAN.
spanning-tree vlan <vlan-id> hello-time <hello_time> Configures STP hello timer.
spanning-tree vlan <vlan-id> forward-time <forward_time> Configures STP forward-time.
spanning-tree vlan <vlan-id> max-age <max_age> Configures STP max-age.
spanning-tree port-priority <port_priority> Configures port priority on a specified interface.
61 speed <speed> Enter switch port speed 10,100, auto. 
62  switchport access vlan <vlan_num>
63  switchport mode access Access mode of the switch is set to access
64  switchport mode trunk Access mode of the switch is set to trunk
65  switchport port-security mac-address sticky<mac_addr>  
66  switchport port-security maximum <max_macadd>  
67  switchport port-security violation <violat_mode>  
68  switchport trunk encapsulation dot1q Command for switch in interface configuration mode
69  vlan<vlan_num> VLAN numbers can range 1-1000,However only 64VLANs can be active at a time.
70 vlan <vlan_num> name <vlan_name>  VLAN numbers can range 1-1000, VLAN name can be upto 32 characters
71 vtp client Place the switch in VTP client mode. But it does not store VLAN information in non-volatile memory.
72 vlan database  
73 vtp transparent SW(vlan)# vtp transparent
Sets the switch to VTP TRANSPARENT mode.
74 vtp password <password> Passwords are case sensitive. Passwords should match on all switches in the same domain.
75 vtp domain <name> VTP domain name can be 1 to 32 characters long and identifies the VTP administrative domain for the switch. The domain name is case sensitive.
76 vtp pruning  
77 vtp server Place the switch in VTP server mode. Stores VLAN information in non-volatile memory. Generates VLAN advertisements.

Note: The commands supported by the simulator is given above. The syntax may not be complete for various commands. This is done intentionally to accommodate limited command set supported by the simulator at this point of time. Please refer to official Cisco® website for complete command syntax.

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