Latest revision as of 08:39, 17 April 2024

Cisco Internetwork Operating System (IOS) is a family of network operating systems used on many Cisco Systems routers and current Cisco network switches

Basic commands[edit]

show version or sh ver (includes uptime information)
show clock

Interfaces[edit]

show interface
- show interface Gi1/0/1
show interface link
show interface status (enable or disabled)
- show interface status err
show interface stats
show interface summary
show interface trunk
show interfaces switchport. To display the administrative and operational status of a switching (nonrouting) port, including VLANs. and switchport mode

show configuration or sh conf
show running-config or sh run An enable mode command that displays the current configuration
configure terminal or conf t Logs you into configuration mode

switchport mode access|trunk

interface Te1/0/1

show mac address-table interface <switchport>

show ip [OPTION]
show ip interface
- show ip interface brief or sh ip int br
enable Logs into enable mode. Also known as user exec mode or privileged mode. See also: show privilege
- enable 5 Change to level 5
- no enable password

show ip traffic

show tcp brief

show logging
- show logging history

show archive log config all

no shutdown. Enables an interface (brings it up).

show process

ip dns
- ip dns spoofing

debug ip domain

ip domain lookup
no ip domain lookup

ip domain-lookup
no ip domain-lookup

ip host HOSTNAME xx.xx.xx.xx (Similar to /etc/hosts)

[no] ip forward-protocol nd

ip route-cache
no ip route-cache

ip ssh pubkey-chain

include, similar to grep linux command

VLAN[edit]

show vlan [brief | id <vlan-id> | name <name> [ifindex] | <ifindex>]
- show vlan
- show vlan brief or sh vlan br
- show vlan summary or sh vlan s
show vtp status

Create a new VLAN

show ip[edit]

show ip route or sh ip ro

show ip arp
show ip ssh

Users[edit]

show privilege

username Create and delete users
Cisco IOS: show users

write

show crypto ca certificates

aaa new model

IOS: Access List (ACLs)

HTTP Server[edit]

sh ip http server all

R1(config)#ip http server
R1(config)#ip http authentication local
R1(config)#ip http secure-server

DHCP Server[edit]

show ip dhcp binding

Memory[edit]

show memory
show memory platform

Configuration Guides[edit]

Activities[edit]

Read Cisco IOS command reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fundamentals/command/Cisco_IOS_Configuration_Fundamentals_Command_Reference.pdf
Read Cisco IOS Cheat Sheet: https://www.netwrix.com/cisco_commands_cheat_sheet.html
Configure a user with public key access Configure public RSA key authentication
Associate a user with default higher privileges using username command
Create a new VLAN
Use ansible: ansible-galaxy install ansible-network.cisco_ios

Related terms[edit]

See also[edit]

Cisco IOS: Cisco IOS XE, Config (mode), VLANs, Cisco IOS logging, VTP, ACLs, show logging, show logging history, show interface status, debug, archive, show archive, conf t, int, ip http server, ip ssh, ip address, vty, show mac address-table, show access-list, Access-list, ip access-group, admin
Networking: bandwidth, latency, Jitter, Ethernet, UPnP, MPLS, Frame Relay, ATM, TCP/IP, ARP, WiFi, BGP, Networking timeline, Router, Proxy ARP, Services & Networking, Traffic shapper
Cisco IOS, PAN-OS, Junos OS, FortiOS
OS: PAN-OS, FortiOS, SonicOS, IPFire, JunOS
Cisco, Meraki, Cisco IOS, Cisco NX-OS, Cisco UCS, Cisco ACI, Cisco IOS XE, Cisco SD-access, AppDynamics, CCT, CCNA, CCNP, CCENT, Duo Mobile, Cisco Duo Mobile, Webex

Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy.Source: https://en.wikiversity.org/wiki/Cisco_IOS

@@ Line 2: / Line 2: @@
-== Basic commands ==
+= Basic commands =
 * <code>[[show version]]</code> or <code>sh ver</code> (includes [[uptime]] information)
+* <code>[[show clock]]</code>
-Interfaces:
+* <code>[[debug (IOS)|debug]]</code>
-* <code>show interfaces</code>
+* <code>[[show platform]]</code>
-* <code>[[show interface link]]</code>
+* <code>[[show cdp neighbors]]</code>
-* <code>[[show interface status]]</code>
-* <code>[[show interface trunk]]</code>
+== Interfaces ==
-* <code>[[show interfaces switchport]]</code>. To display the administrative and operational status of a switching (nonrouting) port
+{{show interface TOC}}
 * <code>[[show configuration]]</code> or <code>sh conf</code>
@@ Line 20: / Line 21: @@
 * interface Te1/0/1
+* <code>[[show mac address-table]] interface <switchport></code>
-* <code>[[ip dns]]</code>
 * <code>show ip [OPTION]</code>
 * <code>[[show ip interface]]</code>
 ** <code>show ip interface brief</code> or <code>sh ip int br</code>
-* <code>enable</code> Logs into enable mode. Also known as user exec mode or privileged mode. See also: <code>show privilege</code>
+* <code>[[enable]]</code> Logs into enable mode. Also known as user exec mode or privileged mode. See also: <code>[[show privilege]]</code>
 ** <code>enable 5</code> Change to level 5
 ** <code>no enable password</code>
 * <code>show ip traffic</code>
+* <code>show tcp brief</code>
 * <code>[[show logging]]</code>
+** <code>[[show logging history]]</code>
+* <code>[[show archive]] log config all</code>
 * <code>[[no shutdown]]</code>. Enables an interface (brings it up).
+* <code>show process</code>
+* <code>[[ip dns]]</code>
+** <code>[[ip dns spoofing]]</code>
+* <code>[[debug ip domain]]</code>
 * <code>ip domain lookup</code>
@@ Line 45: / Line 61: @@
 * <code>ip host HOSTNAME xx.xx.xx.xx</code> (Similar to <code>/etc/[[hosts]]</code>)
+* [no] <code>ip forward-protocol nd</code>
 * <code>ip route-cache</code>
 * <code>no ip route-cache</code>
@@ Line 52: / Line 72: @@
 * <code>include</code>, similar to <code>[[linux/Basic commands/grep|grep]]</code> linux command
-* <code>show vlan [brief | id <vlan-id> | name <name> [ifindex] | <ifindex>]</code>
+== [[VLAN]] ==
+* <code>[[show vlan]] [brief | id <vlan-id> | name <name> [ifindex] | <ifindex>]</code>
 ** <code>[[show vlan]]</code>
 ** <code>[[show vlan brief]]</code> or <code>[[sh vlan br]]</code>
 ** <code>show vlan summary</code> or <code>[[sh vlan s]]</code>
+* <code>[[show vtp status]]</code>
-* <code>[[aaa new model]]</code>
+* [[IOS: Create a VLAN|Create a new VLAN]]
-* <code>[[show ip route]]</code> or  <code>[[show ip ro]]</code>
+== [[show ip]] ==
+* <code>[[show ip route]]</code> or  <code>[[show ip route|sh ip ro]]</code>
 * <code>[[show ip arp]]</code>
 * <code>[[show ip ssh]]</code>
-* <code>show privilege</code>
+== [[Stacking]] ==
+* <code>[[show switch stack-ports]]</code>
+== Users ==
+* <code>[[show privilege]]</code>
 * <code>[[username]]</code> Create and delete users
-* <code>[[show users]]</code>
+* <code>[[Cisco IOS: show users]]</code>
 * <code>[[write]]</code>
@@ Line 72: / Line 100: @@
 * <code>[[show crypto ca certificates]]</code>
-* <code>[[show vtp status]]</code>
-=== Access List ===
+* <code>[[aaa new model]]</code>
-Configuring IP Access Lists: https://www.cisco.com/c/en/us/support/docs/security/ios-firewall/23602-confaccesslists.html#acltypes
+[[IOS: Access List (ACLs)]]
-Types of ACLs: Standard ACLs, Extended ACLs, Lock and Key (Dynamic ACLs), IP Named ACLs, Reflexive ACLs, Time-Based ACLs Using Time Ranges, Commented IP ACL Entries, Context-Based Access Control, Authentication Proxy, Turbo ACLs, Distributed Time-Based ACLs, Receive ACLs, Infrastructure Protection ACLs, Transit ACLs.
-* <code>show access-list</code>
+== HTTP Server ==
-* <code>show ip access-list</code>
-* <code>router(config)#access-list 101 deny icmp any any</code>
-* <code>router(config)#access-list 101 permit ip any any</code>
-* <code>router(config)#ip access-list extended test</code>
-* <code>router(config-ext-nacl)#permit ip host 2.2.2.2 host 3.3.3.3</code>
-* <code>router(config-ext-nacl)#permit tcp host 1.1.1.1 host 5.5.5.5 eq www</code>
-* <code>router(config-ext-nacl)#permit icmp any any</code>
-* <code>router(config-ext-nacl)#permit udp host 6.6.6.6 10.10.10.0 0.0.0.255 eq domain</code>
-* <code>ip access-group</code>
-* <code>[[copy running-config startup-config]]</code>
-=== HTTP Server ===
 * <code>sh ip http server all</code>
@@ Line 102: / Line 110: @@
 * <code>R1(config)#ip http authentication local</code>
 * <code>R1(config)#ip http secure-server</code>
+== [[DHCP]] Server ==
+* <code>[[show ip dhcp binding]]</code>
+== Memory ==
+* <code>[[show memory]]</code>
+* <code>[[show memory platform]]</code>
 == Configuration Guides ==
-* [[Cisco IOS DHCP Server configuration]]
+{{IOS activities}}
-* [[Configure public RSA key authentication]]: <code>[[Cisco IOS/Configure public RSA key authentication|ip ssh pubkey-chain]]</code>
 == Activities ==
-# Read wikipedia article about [[w:Cisco IOS|Cisco Internetwork Operating System]]
 # Read Cisco IOS command reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fundamentals/command/Cisco_IOS_Configuration_Fundamentals_Command_Reference.pdf
 # Read Cisco IOS Cheat Sheet: https://www.netwrix.com/cisco_commands_cheat_sheet.html
-# Configure a user with public key access [[/Configure public RSA key authentication/]]
+# Configure a user with public key access [[Configure public RSA key authentication]]
-# [[/Associate a user with default higher privileges/]] using <code>[[/username/]]</code> command
+# [[Associate a user with default higher privileges]] using <code>[[username]]</code> command
+# [[IOS: Create a VLAN|Create a new VLAN]]
+# Use ansible: <code>[[ansible-galaxy install ansible-network.cisco_ios]]</code>
+== Related terms ==
+* [[Secure Gateway OS (SGOS)]]
+* [[iOS]]
+* [[Cisco NX-OS]]
 == See also ==
+* {{IOS}}
 * {{Networking}}
 * {{Networking OS}}

Difference between revisions of "Cisco IOS"

Latest revision as of 08:39, 17 April 2024

Contents

Basic commands[edit]

Interfaces[edit]

VLAN[edit]

show ip[edit]

Stacking[edit]

Users[edit]

HTTP Server[edit]

DHCP Server[edit]

Memory[edit]

Configuration Guides[edit]

Activities[edit]

Related terms[edit]

See also[edit]

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