The document provides instructions for various Cisco router and switch configuration commands. It covers topics like IP routing, static and default routing, routing protocols (RIP, IGRP, EIGRP, OSPF), VLAN configuration, trunking, inter-VLAN routing, VTP, backing up configurations, CDP, telnet, access lists, and more. Examples are given for many commands to illustrate their usage in different scenarios.
CCNA Routing Protocol Commands.IP ROUTING, Static Routing, RIP (Routing Information Protocol), EIGRP, Verifying EIGRP and more.
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Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
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CCNA Routing Protocol Commands.IP ROUTING, Static Routing, RIP (Routing Information Protocol), EIGRP, Verifying EIGRP and more.
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Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
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Networking Tutorial Goes to Basic PPP Configuration3Anetwork com
Leading Cisco networking products distributor-3network.com
Here we will be going over Basic Configuration of PPP (Point-to-Point Protocol). It includes Basic Configuration tasks on a router, configuring OSPF routing protocol, and configuring PPP PAP and CHAP authentication
Cisco CCNA IP SLA with tracking configurationHamed Moghaddam
Cisco CCNA/CCNP Training/Exam Tips that are helpful for your Certification Exam!
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Redistribution is necessary when routing protocols connect and must pass routes between the two.
Route Redistribution involves placing the routes learned from one routing domain, such as RIP, into
another routing domain, such as EIGRP.
While running a single routing protocol throughout your entire IP internetwork is desirable, multiprotocol routing is common for a number of reasons, such as company mergers, multiple departments
managed by multiple network administrators, and multi-vendor environments. Running different
routing protocols is often part of a network design.
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
Networking Tutorial Goes to Basic PPP Configuration3Anetwork com
Leading Cisco networking products distributor-3network.com
Here we will be going over Basic Configuration of PPP (Point-to-Point Protocol). It includes Basic Configuration tasks on a router, configuring OSPF routing protocol, and configuring PPP PAP and CHAP authentication
Cisco CCNA IP SLA with tracking configurationHamed Moghaddam
Cisco CCNA/CCNP Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
Redistribution is necessary when routing protocols connect and must pass routes between the two.
Route Redistribution involves placing the routes learned from one routing domain, such as RIP, into
another routing domain, such as EIGRP.
While running a single routing protocol throughout your entire IP internetwork is desirable, multiprotocol routing is common for a number of reasons, such as company mergers, multiple departments
managed by multiple network administrators, and multi-vendor environments. Running different
routing protocols is often part of a network design.
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
It is an open standard, distance vector, classfull routing protocol. Rip version 2 supports classless.
It sends the complete routing table out to all active interfaces every 30 seconds. Rip only uses hop count
to determine the best way to a remote network, but it has a maximum allowable hop count of 15 by
default, meaning that 16 is deemed unreachable. RIP works well in small networks, but it’s inefficient on
large networks with slow WAN links or on networks with a large number of routers installed.
This study guide is intended to provide those pursuing the CCNA certification with a framework of what concepts need to be studied. This is not a comprehensive document containing all the secrets of the CCNP nor is it a “braindump” of questions and answers.
I sincerely hope that this document provides some assistance and clarity in your studies.
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thGAP - Transgenic Human Germline Alternatives Project, presents an evening of input lectures, discussions and a performative workshop on artistic interventions for future scenarios of human genetic and inheritable modifications.
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1. Command cisco
អូន ប ៊ុនថន 1
IP ROUTING #sh ip route - To view IP routing tables created on a Cisco router. -Static Routing- Routers are manually configured for networks that are not directly connected, to be able to route to all networks via the next-hop interface. Example- Let 192.168.30.0/24 be the IP of a network not directly connected Let 192.168.20.2 be the next hop interface (config)#ip route 192.168.30.0 255.255.255.0 192.168.20.2 -to remove static route (config)#no ip route 192.168.30.0 255.255.255.0 192.168.20.2 -Default Routing- Used on stub networks only to send packets with remote destination network not in the routing table to the next hop router. (Assume IP 192.168.40.1 is not in routing table) -first remove static route (config)#no ip route 192.168.30.0 255.255.255.0 192.168.40.1 (config)#ip route 0.0.0.0 0.0.0.0 192.168.40.1 -RIP- A distance vector routing protocol that passes complete routing table contents to neighbouring routers Example- Let 192.168.10.0 & 192.168.20.0 be directly connected networks of a router interfaces and 192.168.30.0 be non-directly connected
2. Command cisco
អូន ប ៊ុនថន 2
-first delete all static routes (config)#no ip route 192.168.30.0 255.255.255.0 192.168.20.2 (config)#router rip (config-router)#network 192.168.10.0 (config-router)#network 192.168.20.0 (config-router)#^z # -Verifying RIP 1.Sh ip route 2.debug ip -Holding Down RIP Propagation- To stop RIP update sending but allow its receipt -say for s0/0 with ip 192.168.10.0 (config)#router rip (config-router)#network 192.168.10.0 (config-router)#passive-interface serial 0/0 -IGRP- Also a distance routing protocol Example- Let 192.168.10.0 & 192.168.20.0 be directly connected networks of a router interfaces with autonomous system number of 10 and 192.168.30.0 be non-directly connected #router igrp 10 (config-router)#network 192.168.10.0 (config-router)#network 192.168.20.0 (config-router)#^z
3. Command cisco
អូន ប ៊ុនថន 3
# -Verifying IGRP 1.sh ip route 2.sh protocols- Displays routed protocols and their interfaces 3.sh ip protocols- Displays routing protocols configured 4.debug igrp events- Displays summary of IGRP routing information running on the network 5.debug igrp transactions- Displays messages request from neighbour routers -Turning off all possible debugging #un all -EIGRP- Uses classless routing which is subnet mask information sent with routing protocol updates. Example- Let 192.168.10.0 & 192.168.20.0 be directly connected networks of a router interfaces with autonomous system number of 20 and 192.168.30.0 be non-directly connected #router eigrp 20 (config-router)#network 192.168.10.0 (config-router)#network 192.168.20.0 (config-router)#^z -To stop EIGRP from working on an interface- no sending no receipt (config)#router eigrp 20 (config-router)#passive-interface serial 0/0
4. Command cisco
អូន ប ៊ុនថន 4
-To enable EIGRP on discontiguos networks- (two different subnetworks of classfull network connected by another different classful subnetwork)
Example- Let 172.16.0.0 & 10.0.0.0 be directly connected to a router to another remote subnetwork of 192.168.10.0, then to enable EIGRP, we use (config)#router eigrp 100 (config-router)#network 172.16.0.0 (config-router)#network 10.0.0.0 (config-router)#no auto-summary N.B-The no auto-summary command sholuld be enabled in routers that encloses such networks. -Verifying EIGRP 1. sh ip route- Shows entire routing table 2. sh ip route eigrp- Shows only EIGRP entries in the routing table 3. ip eigrp neighbours- Shows all EIGRP neighbours 4. ip eigrp topology- Shows entries in the EIGRP topology table -OSPF- A link-state routing protocol Example- Let 10.0.0.0 be the network directly connected to the router upon which OSPF is to be enabled; with ospf ID of 1 and area o (config)#router ospf 1 (config-router)#network 10.0.0.0 0.255.255.255 area0 -Loopback Interface- They are configured to be used as the routers RID to advertise the routes and elect DR and BDR.
5. Command cisco
អូន ប ៊ុនថន 5
Example- Let the loopback iinterface be configured on interface with ip 172.16.10.1 (config)#int loopback 0 (config-if)#ip address 172.16.10.1 255.255.255.0 (config-if)#no shut (config-if)#^z -Verifying OSPF Configuration 1. sho ip ospf- Used to display all OSPF information 2. sho ip ospf database- indicates the number of links and neighboring router ID 3. sho ip ospf interface- Displays all OSPF interface related info 4. sho ip ospf neighbour- Summarizes OSPF info about neighbours 5. sho ip protocols- Overview of all present running protocols - Verifying Loopback and RID 1. sho running-config- To verify loopback address 2. sho ip ospf database- Verifies the new RID of each router 3. sho ip ospf interface- Verifies the new RID of each router -Initial configuration of a 1900 Switch with ip 172.16.10.16 >en #config t (config)#enable password level 1 kennifeh (config)#enable password level 15kennifeh 1 (config)#enable secret kennifeh 2(when enabled no need 4 enable password) (config)#hostname kenn 1900 (config)#ip address 172.16.10.16 255.255.255.0
6. Command cisco
អូន ប ៊ុនថន 6
(config)#ip default-gateway 172.16.10.1 (config)#int f0/1 (config-if)#description Finance_vlan (No space for 1900) (config-if)#int f0/26 (config-if)#description Trunk_to_Biulding (config-if)#exit (config)# -Initail Configuration of 2950 Switch with ip 172.16.10.17 255.255.255.0 >en #config t (config)#hostame kenn2950 (config)#enable password kenn (config)#enable password kenn1(enable and enable secret password must be different) (config)#line vty 0 15 (config-line)#login (config-line)#password telnet (config-line)#line con 0 (config-line)#login (config-line)#password console (config-line)#exit (config)#int vlan 1 (config-if)#ip address 172.16.10.17 255.255.255.0 (config-if)#no shut (config-if)#int f0/1 (config-if)#description sales printer(with space) (config-if)#int f0/12 (config-if)description connection to backbone
7. Command cisco
អូន ប ៊ុនថន 7
config-if)#exit (config)#ip default-gateway 172.16.10.1 (config)#
-Erasing Switching Configuration 1900 #delete nvram yes -Erasing Switching Configuration 2950
Delete file vlan.dat #erase startup-config Enter -Configuring VLANS 1900 >en #config t (config)#vlan 2 name Cisco (config)#vlan 3 name Microsoft (config)#vlan 4 name Comptia (config)#exit verify with command sh run -Configuring for 2950 >en #vlan database (vlan)#vlan 2 name Cisco (vlan)#vlan 3 name Microsoft
8. Command cisco
អូន ប ៊ុនថន 8
(vlan)#vlan 4 name Comptia (vlan)#apply (vlan)#^c verify with command sh vlan brief
-Assigning Switch Ports To Vlan- 1900 (config)#int e0/2 (config-if)#vlan-membership static 2 (config-if)#int e0/3 (config-if)#vlan-membership static 3 (config-if)#exit verify with sh vlan -Assigning Switch Ports To Vlan- 2950 (config)#int f0/2 (config-if)#switchport access vlan 2 (config-if)#int f0/3 (config-t)#switchport access vlan 3 (config-if)#int f0/4 (config-if)#switchport access vlan 4 (config-if)# verify with sh vlan brief -Configuring Trunks ports (config)#int f0/26
9. Command cisco
អូន ប ៊ុនថន 9
(config-if)#trunk on -Configuring Trunk Ports for 2950 (config)#int f0/12 (config-if)#switchport mode trunk (config-if)#^z #
-To disable Trunk- use switchport mode access -To verify Trunking- use sh running config -Configuring Inter-vlan Routing for 1900 connecting to 2600 (config)#int f0/0.1 (config-if)#encapsulation isl vlan (d number) -Configuring Inter-vlan Routing for 2950 connecting to 2600 (config)#int f0/0.1 (config-if)#encapsulation dot1q vlan (d number)
-Configuring VTP for 1900 (config)#vtp server (config)vtp domain kenn (config)#vtp password kenn -Configuring VTP for 2950 (config)#vtp mode server (config)#vtp domain routersim (config)#^z
10. Command cisco
អូន ប ៊ុនថន 10
-verify with sh vtp status -Checking the Current Configuration Register Values show version or show ver -Changing Configuration Register (config)#config-register 0x101 (d default is 0x2102) (config)#^z -Recovering Passwords 1. Interrupt the Router Boot Sequene ctrl+Break key (windows wont perform break key, only 95/98) 2. Changing the configuration register -for 2600 series router rammon>confreg 0x2142 -for 2500 type 0 after a break and enter the command o/r 0x2142 3. Reloading the Router and Entering Privilged mode -for 2600-type reset -for 2500-type I 4. Viewing and changing the configuration -copy run start 5. Resetting the configuration Register and Reloading the Router -config t -config-register 0x2102 -copy run start-to save
11. Command cisco
អូន ប ៊ុនថន 11
-Backing up and restoring the Cisco ios 1. verifying flash memory-Ensuring flash memory has enough room router#sh flash 2. Backing-up the ciso ios first verify server connectivity by- Router#ping 192.168.0.120 then; router#copy flash tftp 3. Restoring or upgrading the cisco router ios router#copy tftp flash [confirm][ENTER] ?[ENTER] -Backing up and Restoring the Cisco configuration 1.Backing up the cisco router configuration -copy runing config tftp 2. verifying the current configuration -sh run 3. copying the current cofiguration to NVRAM -copy run start 4. copying the current configuration to a TFTP server -copy run TFTP 5. Restoring the Cisco Router Configuration -copy TFTP run 6. Erasing the configuration -erase startup-config -Getting CDP timers and Holdtime information Router#config t Router(config)#cdp timer 90 Router(config)#cdp holdtime 240
12. Command cisco
អូន ប ៊ុនថន 12
Router(config)#^z
-Turn-off CDP Completely- no cdp run -Gathering Neighbour information kenn2509#sh cdp nei- delivers information about directly connected devices OR kenn2509#sh cdp neighbour detail Also sh cdp entry -Gathering Interface Traffic Information kenn2509#sh cdp traffic
-Gathering port and Interface information kenn2509#sh cdp interface -Turn off cdp on a router- no cdp enable then ^z -Using Telnet kenn2509#telnet 172.16.10.2 -Telnetting into multiple devices simultaneously kenn2509#telnet 172.16.10.2 then, 2501B>{cntl+shift+6, then x} -Checking Telnet connections kenn2509#sh sessions-connections from your router to remote -Checking Telnet users kenn2509#sh user
13. Command cisco
អូន ប ៊ុនថន 13
-Closing Telnet sessions 1900switch>exit OR kenn2509#disconnect1 (num of active networks)
-Resolving Hostname kenn2509#config t kenn2509(config)#ip host 2501B 172.16.10.2 kenn2509(config)#ip host 1900switch 192.168.0.148 kenn2509(config)#^z
-Remove a hostname from a table RouterA(config)#no ip host routerB
-Using DNS to resolve names #config t (config)#ip domain-lookup (usually turned on by default) (config)#ip name-server 192.168.0.70 (ip of an assumed DNS set) (config)#ip domain-name kenn.com (Appends the domain name to a host) (config)#^z -Check Network Connectivity use ping command #ping kenn2509 -Using Traceroute command #trace 2501B -Creating a Standard Access Lists (1-99 or 1,300-1,999) (config)#access-list 10 deny 172.16.30.2 (using the ip as a test)
14. Command cisco
អូន ប ៊ុនថន 14
-Controlling vty(Telnet) sessions (config)#access-list 50 permit 172.16.30.2 (config)#line vty 0 4
(config-line)#access-class 50 in -Creating Extended Access-lists (100 to 199) OR (2000 to 2699) (config)#access-list 110 deny tcp any host 172.16.30.2 eq 23 log (config)#access-list 110 permit ip any any (config)#int f0/0 (config-if)#ip access-group 110 in (config-if)#ip access-group 110 out