The basic configuration of these protocols compared to each other. RIP OSPF EIGRP configure terminal configure terminal configure terminal router rip router ospf 1 router eigrp 10 version 2 network 10.0.10.0 network 10.0.10.0 0.0.255.255 area 0 network 10.0.10.0
Author: Philip
OSPF – multiple Area
A routing example of 3 area’s created with GNS3. Show running-configs of the OSPF section of all 7 routers R1#show running-config | section ospf router ospf 1 network 10.0.0.0 0.0.255.255 area 0 R2#show running-config | section ospf router ospf 1 network 10.0.0.0 0.0.255.255 area 0 network 192.0.0.0 0.255.255.255 area 1 R3#show running-config | section ospf […]
IPv4 vs IPv6
Here a IPv4 vs IPv6 comparison table.You can find the full table here: https://www.ripe.net/manage-ips-and-asns/ipv6/ipv6-address-types IPv6 IPv6 Example Designation and explanation IPv4 Equivalent ::/128 Unspecified 0.0.0.0 ::1/128 Loopback 127.0.0.1 ::ffff:0:0/96 ::ffff:192.0.2.47 IPv4-Mapped No equivalent fc00::/7 fdf8:f53b:82e4::53 Unique Local Addresses (ULAs) 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 fe80::/10 fe80::200:5aee:feaa:20a2 Link-Local Addresses 169.254.0.0/16 2001:0000::/32 2001:0000:4136:e378: 8000:63bf:3fff:fdd2 Teredo No equivalent 2002::/16 2002:cb0a:3cdd:1::1 […]
IPv6 example 1
========== SHOW INTERFACES ========== RouterA#show interfaces GigabitEthernet0/0 is up, line protocol is up Hardware is iGbE, address is 0ca8.ba4f.9b00 (bia 0ca8.ba4f.9b00) Description: Uplink RouterB RouterB#show interfaces GigabitEthernet0/0 is up, line protocol is up Hardware is iGbE, address is 0ca8.baee.5700 (bia 0ca8.baee.5700) Description: Uplink RouterA ========== CONFIGURE INTERFACES ========== RouterA#configure terminal RouterA(config)#interface gigabitEthernet 0/0 RouterA(config-if)#ipv6 address […]
IPv6 routing
Enable IPv6 routing on a Cisco 2800. Router#configure terminal Router(config)#ipv6 unicast-routing Router(config)#end
Cisco command: show (1)
Router#show ip eigrp topology Router#show ip eigrp topology IP-EIGRP Topology Table for AS 100/ID(192.168.1.1) Codes: P – Passive, A – Active, U – Update, Q – Query, R – Reply, r – Reply status P 10.1.1.0/24, 1 successors, FD is 28160 via Connected, FastEthernet0/0 P 10.2.2.0/24, 1 successors, FD is 20514560 via 192.168.1.2 (20514560/28160), Serial1/0 […]
ICND2 – Abbreviations
802.3 Ethernet AAA Authentication Authorization Accounting ABR Area Border Router ACL Access Control List AD Advertised Distance AD Administrative Distance AF Assured Forwarding API Application Programming Interface APIC Cisco Application Policy Infrastructure Controller APIC-EM Application Policy Infrastructure Controller – Enterprise Module ARP Address Resolution Protocol AS Autonomous System ASBR Autonomouse System Boundary Router ASN Autonomous […]
Administrative Distances
0 connected interface 1 Static route 20 External BGP 90 Internal EIGRP 100 IGRP 110 OSPF 115 IS-IS 120 Routing Information Protocol (RIP) 140 Exterior Gateway Protocol (EGP) 170 External EIGRP 200 Internal BGP 255 Unknown and unused
Syslog
An overview of the Syslog levels: 0 emergencies System is unusable (severity=0) 1 alerts Immediate action needed (severity=1) 2 critical Critical conditions (severity=2) 3 errors Error conditions (severity=3) 4 warnings Warning conditions (severity=4) 5 notifications Normal but significant conditions (severity=5) 6 informational Informational messages (severity=6) 7 debugging Debugging messages (severity=7)
Router On A Stick
Want to know how to configure Router On A Stick?Here is an example. This setup is created with Cisco Packet Tracer. The PC’s are configured with routers of type 2811.After configuring this setup, the PC’s can ping each other. You can download:Cisco Packet Tracer fileVisio file