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IP Services - Coggle Diagram
IP Services
DHCP
Set up DHCP on a Cisco Router
ip dhcp excluded-address 192.168.10.1 192.168.10.9 (Range) ip dhcp excluded-address 192.168.10.254 (Spesific Address)
in configure terminal
ip dhcp pool LAN-POOL-1
in dhcp-config
network 192.168.10.0 255.255.255.0
default router ...
show ip dhcp server statistics
to show dhcp stats
DHCP Relay
ip helper-address [ip address of dhcp server]
interface [interface of the network you need to help]
resolving IP conflicts
show ip dhcp conflict
Verify Port status
verify physical connection
Dynamic Routing Protocols
IGPs Interior Gateway protocols
Distance Vector Routing Protocols
RIPv1
RIPv2
AD 120
uses Hop Count
Multicast 224.0.0.9
Bellman-Forde
IGRP
EIGRP
AD 90
Bandwidth Delay
224.0.0.10
DUAL algorithm
Link State Routing Protocols
OSPF
AD 110
Cost(Bandwidth)
Multicast 224.0.0.5(all) 224.0.0.6(DR/BDR)
Dijkstra
Open Shortest path first
Classless Routing Protocol
can be used in mixed router networks
default AD is 110
Requires the election of a DR and BDR for faster convergence and to reduse router spesific traffic
Hello Protocol
To form an adjacentcy they need the same
dead interval
Hello interval
Area ID
Sends out hello protocols to descover OSPF neighbors & establish adjacencies
inside the hello packet there is a router ID
the hightest IP address of any port on that router
if the routers are connected with serial, the hellos are sent out every 10 seconds
if the routers are connected with ethernet, its NMBA and it sends out hellos every 30 seconds
Setting up OSPF
router ospf (proccess ID)
next it needs a network address with a wildcard mask and an aria id for the networks that it needs to advertize
network 172.10.1.0 0.0.0.3 area 0
As many times as you have connected networks(connected cables)
enter all the addressses for the router that needs to be in the same aria
Basic OSPF Config
IS-IS
EGPs exterior gateway Protogols
Path Vector Routing Protocol
BGP
no AD
Metric uses multiple attributes
Unicast address
Algorithm is best path
out on the internet routing
things that Dynamic routing protocols do
Discovers remote detworks
maintaits up-to-date routing info
choose the best path to the destination networks
abisity to find a new best path if the current path is no longer available
FTP
FTPS
Uses SSL
SFTP
Uses SSH
TFTP
UDP protocol
Cisco uses it for config files
Resolve Host names to IP addresses
DNS
TCP/IP name resulution service that translates FQDN to an ip address or vice versa
Build a host table
Hosts file
a host table is a mapping of the host names to the accociated IP addresses
they are unique names assigned to IP hosts that
Steps
config t
ip host TelnetRtr 192.168.10.5
exit
show hosts
Should shouw you the table of hosts
FDQN
intledues the host name and the domain name
server.domain.com
NTP 123
ntp server [ip of ntp server] version 4
you can set up a router to point to an ntp server