CISCO Router Configuration Guide (e ) routing prot

Chapter one routing protocol to set
, RIP protocol

RIP (Routing information Protocol) is the application of an earlier, more commonly used interior gateway protocol (Interior Gateway Protocol, referred to as the IGP), for small class network, is a typical distance vector (distance-vector) Agreement. Documentation See RFC1058, RFC1723.
RIP through the UDP broadcast packets to exchange routing information every 30 seconds to send a routing information updates. RIP hop count available (hop count) route as a scale to measure distance, hop count is a packet must reach the target number of the router. If the two goals to the same or different non-constant bandwidth router, but the same hop count, then the RIP that is equidistant from the two routes. RIP hop count up to 15, that is the source and purpose of the interconnection of the router to pass the maximum number of 15, 16 said they did not hop up.
1.
task command
the order specified using the specified RIP RIP protocol router rip
version version 1 1
specify with the router connected to the network network network
Note : 1.Cisco's RIP version 2 supports authentication, key management, route summarization, classless inter-domain routing (CIDR) and variable length subnet mask (VLSMs)
2. For example
Router1:
router rip
version 2
network 192.200.10.0
network 192.20.10.0
!
related debugging commands:
show ip protocol
show ip route
II,GHD Leopard Grain, IGRP protocol

IGRP (Interior Gateway Routing Protocol) is a dynamic distance vector routing protocol, which consists of Cisco, the mid-eighties design. User profiles using the combination of scale, including delay, bandwidth, reliability, and load.
By default, IGRP route every 90 seconds to send an update broadcast, updates in the three cycles (ie 270 seconds), not from the first route in the router receives the update, then announced the route is not accessible. In 7 after the update cycle is 630 seconds, Cisco IOS software is removed from the routing table route.
1.
task command
the order specified using RIP protocol router igrp autonomous-system1
specified with the router connected to the network network network
specify the node address of the router adjacent neighbor ip -address
Note: 1, autonomous-system are free to create, not the actual sense of the autonomous-system, but the router running IGRP routing updates in order to exchange their autonomous-system to be the same.
2. For example
Router1:
router igrp 200
network 192.200.10.0
network 192.20.10.0
!
Three, OSPF protocol

OSPF (Open Shortest Path First) is an internal gateway protocol (Interior Gateway Protocol, referred to as the IGP), is used in a single autonomous system (autonomous system, AS) within the decision-making routes. And the relative RIP, OSPF is a link state protocol the road, while the RIP is a distance vector routing protocol.
link is another way of saying the router interface, so OSPF routing protocol, also known as interface state. OSPF routers notice by the state to create a network interface link state database, build the shortest path tree, each router uses the shortest path OSPF routing table structure.
document see RFC2178.
1. Global settings of the order

task command
specify OSPF protocol router ospf process-id1
specify the network connected to the router network address wildcard-mask area area-id2
specify the router adjacent node address neighbor ip-address
Note: 1, OSPF routing process process-id must be specified in the range 1-65535,GHD Green Butterfly 2011, multiple OSPF processes can be configured on the same router, but best not to do so. OSPF OSPF process requires more than a copy of the database, you must run multiple copies of the shortest path algorithm. process-id router only work within the different routers in the process-id can be different.
2,GHD Hair, wildcard-mask is the subnet mask of the anti-code areas of the network ID area-id 0-4294967295 the decimal in the number of IP addresses can also be formatted with xxxx. When the network area ID is 0 or 0.0.0.0 when the trunk domain. Different areas of the network routers to learn routes through the backbone domain.
2. Basic Configuration Example:
Router1:
interface ethernet 0
ip address 192.1.0.129 255.255.255.192
!
Interface serial 0
ip address 192.200.10.5 255.255.255.252
!
router ospf 100
network 192.200.10.4 0.0.0.3 area 0
network 192.1.0.128 0.0.0.63 area 1
!
Router2:
interface ethernet 0
ip address 192.1.0.65 255.255.255.192
!
interface serial 0
ip address 192.200.10.6 255.255.255.252
!
router ospf 200
network 192.200.10.4 0.0.0.3 area 0
network 192.1.0.64 0.0.0.63 area 2
!
Router3:
interface ethernet 0
ip address 192.1.0.130 255.255.255.192
!
router ospf 300
network 192.1.0.128 0.0.0.63 area 1
!
Router4:
interface ethernet 0
ip address 192.1.0.66 255.255.255.192
!
router ospf 400
network 192.1.0.64 0.0.0.63 area 1
!
related debugging commands:
debug ip ospf events
debug ip ospf packet
show ip ospf
show ip ospf database
show ip ospf interface
show ip ospf neighbor
show ip route
3.
use authentication for security reasons, we can in the same area OSPF authentication is enabled on the router function, and only after identification Verify the router to the same area routing information circular to each other.
default OSPF does not use the area authentication. There are two ways to enable authentication, plain text authentication and Message Digest (md5) authentication. Plain text authentication is sent as plain text password authentication, it will be the network to determine the detector, so insecure, not recommended. The message digest (md5) authentication, password authentication before the transfer,GHD IV Straighteners, to encrypt the password, it is generally recommended to use this method for authentication.
using authentication, in the region all the router interfaces must use the same authentication method. For the use of authentication, you must interface configuration mode on the router, each router interface to configure the regional password.

specify the authentication task command area area-id authentication [message-digest]
use plain text authentication ip ospf authentication-key password
using message digest (md5) authentication ip ospf message- digest-key keyid md5 key
following are examples of two methods of verification set, the examples of network distribution and address assignment environment and basic configuration example above, except that in the area 0 Router1 and Router2 using the authentication function. :
Example 1. Use plain text authentication
Router1:
interface ethernet 0
ip address 192.1.0.129 255.255.255.192
!
Interface serial 0
ip address 192.200 .10.5 255.255.255.252
ip ospf authentication-key cisco
!
router ospf 100
network 192.200.10.4 0.0.0.3 area 0
network 192.1.0.128 0.0.0.63 area 1
area 0 authentication
!
Router2:
interface ethernet 0
ip address 192.1.0.65 255.255.255.192
!
interface serial 0
ip address 192.200.10.6 255.255. 255.252
ip ospf authentication-key cisco
!
router ospf 200
network 192.200.10.4 0.0.0.3 area 0
network 192.1.0.64 0.0.0.63 area 2
area 0 authentication
!
Example 2. message digest (md5) authentication:
Router1:
interface ethernet 0
ip address 192.1.0.129 255.255.255.192
!
interface serial 0
ip address 192.200.10.5 255.255.255.252
ip ospf message-digest-key 1 md5 cisco
!
router ospf 100
network 192.200.10.4 0.0.0.3 area 0
network 192.1.0.128 0.0.0.63 area 1
area 0 authentication message-digest
!
Router2:
interface ethernet 0
ip address 192.1.0.65 255.255.255.192
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interface serial 0
ip address 192.200.10.6 255.255.255.252
ip ospf message-digest-key 1 md5 cisco
!
router ospf 200
network 192.200.10.4 0.0.0.3 area 0
network 192.1.0.64 0.0.0.63 area 2
area 0 authentication message-digest
!
related debugging commands:
debug ip ospf adj
debug ip ospf events
IV re-routed

In practice, we encounter multiple IP routing protocol. In order to work properly across the network, routing protocols must be between the number of successful routing redistribution.
Here are redistributed between OSPF and RIP routing setup examples:
Router1 Router2 the Serial 0 port and the Serial 0 port running OSPF, the Ethernet 0 port in Router1 is running RIP 2, Router3 run RIP2, Router2 pointing to the 192.168.2.0/24 network Router4 have a static route, Router4 use the default static route. Router1 and Router3 need to redistribute between OSPF and RIP routing, static routing redistribution on Router2 and directly connected routes.
example command
tasks involved in the redistribution command
route directly connected redistribute static redistribute connected
route redistribution ospf redistribute static
route redistribute ospf process-id metric metric-value
redistribute rip route redistribute rip metric metric-value
Router1:
interface ethernet 0
ip address 192.168.1.1 255.255.255.0
!
interface serial 0
ip address 192.200 .10.5 255.255.255.252
!
router ospf 100
redistribute rip metric 10
network 192.200.10.4 0.0.0.3 area 0
!
router rip
version 2
redistribute ospf 100 metric 1
network 192.168.1.0
!
Router2:
interface loopback 1
ip address 192.168.3.2 255.255.255.0
!
interface ethernet 0
ip address 192.168.0.2 255.255.255.0
!
interface serial 0
ip address 192.200.10.6 255.255.255.252
!
router ospf 200
redistribute connected subnet
redistribute static subnet
network 192.200.10.4 0.0.0.3 area 0
!
ip route 192.168.2.0 255.255.255.0 192.168.0.1
!
Router3:
interface ethernet 0
ip address 192.168.1.2 255.255.255.0
!
router rip
version 2
network 192.168.1.0
!
Router4:
interface ethernet 0
ip address 192.168.0.1 255.255.255.0
!
interface ethernet 1
ip address 192.168.2.1 255.255.255.0
!
ip route 0.0 .0.0 0.0.0.0 192.168.0.2
!
five, IPX protocol settings

IPX protocol and IP protocol are two different network layer protocols, they are not the same routing protocol, IPX's routing protocols such as IP routing protocols are not as abundant, so set up is relatively simple. But the IPX protocol running over Ethernet package must be specified.
1. IPX routing the order
start setting IPX ipx routing
network and Ethernet package ipx network network [encapsulation encapsulation-type] 1
routing protocol specified, the default is RIP ipx router eigrp autonomous-system- number
Note: 1.network range is 1 to FFFFFFFD.
IPX encapsulation type list
Interface IPX frame type package types
Ethernet novell-ether (default) arpa sap snap Ethernet_802.3 Ethernet_II Ethernet_802.2 Ethernet_Snap
Token Ring sap (default) snap Token-Ring Token-Ring_Snap
FDDI snap (default) sap novell-fddi Fddi_Snap Fddi_802.2 Fddi_Raw
example:
In this case, WAN's IPX network 3a00, Router1 is connected to the LAN IPX network number for the 2a00, in this local area have a Novell server, IPX network number is 2a00, router interfaces IPX network number must be on the same network The Novell server IPX network number set on the same. SAP to build a router known by monitoring services and its own network address table, and once every 60 seconds to send its own SAP table.
Router1:
ipx routing
interface ethernet 0
ipx network 2a00 encapsulation sap
!
interface serial 0
ipx network 3a00
!
ipx router eigrp 10
network 3a00
network 2a00
!
Router2:
ipx routing
interface ethernet 0
ipx network 2b00 encapsulation sap
!
interface serial 0
ipx network 3a00
!
ipx router eigrp 10
network 2b00
network 3a00
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related debugging commands:
debug ipx packet
debug ipx routing
debug ipx sap
debug ipx spoof
debug ipx spx
show ipx eigrp interfaces
show ipx eigrp neighbors
show ipx eigrp topology
show ipx interface
show ipx route
show ipx servers
show ipx spx-spoof