Scuttle Techi

10/11/2017

Router – R1 configuration

Router>en
Router t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)
Router(config) R1
R1(config) f0/0
R1(config-if) add 10.0.0.1 255.0.0.0
R1(config-if) sh

R1(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

R1(config-if) wr
Building configuration...
[OK]
R1(config-if)
R1(config) f0/1
R1(config-if) add 40.0.0.1 255.0.0.0
R1(config-if) sh
R1(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
R1(config-if) wr
Building configuration...
[OK]
R1(config-if)
R1(config) s0/3/0
R1(config-if) add 70.0.0.1 255.0.0.0
R1(config-if)
R1(config-if) rate 64000
R1(config-if) sh
%LINK-5-CHANGED: Interface Serial0/3/0, changed state to down
R1(config-if) #
R1(config-if) wr
Building configuration...
[OK]
R1(config-if)
R1(config) #

Router R2 configuration

Router>en
Router t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)
Router(config) R2
R2(config) f0/0
R2(config-if) add 20.0.0.1 255.0.0.0
R2(config-if) sh
R2(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R2(config-if) wr
Building configuration...
[OK]
R2(config-if)
R2(config) f0/1
R2(config-if) add 50.0.0.1 255.0.0.0
R2(config-if) sh
R2(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
R2(config-if) wr
Building configuration...
[OK]
R2(config-if)
R2(config) s0/3/0
R2(config-if) add 70.0.0.2 255.0.0.0
R2(config-if) sh
R2(config-if) #
%LINK-5-CHANGED: Interface Serial0/3/0, changed state to up
R2(config-if) wr
Building configuration...
[OK]
R2(config-if)
R2(config) s0/3/
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/3/0, changed state to up
1
R2(config-if)
R2(config) s0/3/1
R2(config-if) add 80.0.0.1 255.0.0.0
R2(config-if)
R2(config-if) rate 64000
R2(config-if) sh

%LINK-5-CHANGED: Interface Serial0/3/1, changed state to down
R2(config-if) #
R2(config-if) wr
Building configuration...
[OK]
R2(config-if)
R2(config) #

Router R3 – configuration
Router>en
Router t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)
Router(config) R3
R3(config) f0/0
R3(config-if) add 30.0.0.1 255.0.0.0
R3(config-if) sh
R3(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R3(config-if) wr
Building configuration...
[OK]
R3(config-if)
R3(config) f0/1
R3(config-if) add 60.0.0.1 255.0.0.0
R3(config-if) sh
R3(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
R3(config-if) wr
Building configuration...
[OK]
R3(config-if)
R3(config) s0/3/1
R3(config-if) add 80.0.0.2 255.0.0.0
R3(config-if) sh
R3(config-if) #
%LINK-5-CHANGED: Interface Serial0/3/1, changed state to up
R3(config-if) wr
Building configuration...
[OK]
R3(config-if)
R3(config) #
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/3/1, changed state to up

Router R1 –path configuration

Router>en
Router t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)
Router(config) R3
R3(config) f0/0
R3(config-if) add 30.0.0.1 255.0.0.0
R3(config-if) sh

R3(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

R3(config-if) wr
Building configuration...
[OK]
R3(config-if)
R3(config) f0/1
R3(config-if) add 60.0.0.1 255.0.0.0
R3(config-if) sh

R3(config-if) #
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

R3(config-if) wr
Building configuration...
[OK]
R3(config-if)
R3(config) s0/3/1
R3(config-if) add 80.0.0.2 255.0.0.0
R3(config-if) sh

R3(config-if) #
%LINK-5-CHANGED: Interface Serial0/3/1, changed state to up

R3(config-if) wr
Building configuration...
[OK]
R3(config-if)
R3(config) #
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/3/1, changed state to up

R1 Router – Path configuration
R1(config) rout
R1(config) route 20.0.0.0 255.0.0.0 70.0.0.2
R1(config) rou
R1(config) route 30.0.0.0 255.0.0.0 80.0.0.2
R1(config) route 50.0.0.0 255.0.0.0 70.0.0.2
R1(config) route 60.0.0.0 255.0.0.0 80.0.0.2
R1(config) route 80.0.0.0 255.0.0.0 70.0.0.2
R1(config) wr
Building configuration...
[OK]

R2 Router – Path configuration
R2>en
R2 t
Enter configuration commands, one per line. End with CNTL/Z.

R2(config) route 10.0.0.0 255.0.0.0 70.0.0.1
R2(config) route 40.0.0.0 255.0.0.0 70.0.0.1
R2(config) route 30.0.0.0 255.0.0.0 80.0.0.2
R2(config) route 60.0.0.0 255.0.0.0 80.0.0.2
R2(config) wr
Building configuration...
[OK]
R2(config)
R2 #
%SYS-5-CONFIG_I: Configured from console by console

R3 Router – Path configuration

R3>en
R3 t
Enter configuration commands, one per line. End with CNTL/Z.

R3(config) route 20.0.0.0 255.0.0.0 80.0.0.1
R3(config) route 50.0.0.0 255.0.0.0 80.0.0.1
R3(config) route 10.0.0.0 255.0.0.0 70.0.0.1
R3(config) route 40.0.0.0 255.0.0.0 70.0.0.1
R3(config) route 70.0.0.0 255.0.0.0 80.0.0.1
R3(config) wr
Building configuration...

28/10/2017

Static routing is the most secure way of routing. It reduces overhead from network resources. In this type of routing we manually add routes in routing table. It is useful where numbers of route are limited. Like other routing methods static routing also has its pros and cons.

Advantage of static routing

is easy to implement.
is most secure way of routing, since no information is shared with other routers.
puts no overhead on resources such as CPU or memory.

Disadvantage of static routing

is suitable only for small network.
a link fails it cannot reroute the traffic.

04/09/2016

configuration using two different

router Dhcp1 cofiguration
=============================================================
Router>en
Router t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)
Router(config) R1
R1(config) g0/0
R1(config-if) add 10.0.0.1 255.0.0.0
R1(config-if) sh

R1(config-if) #
%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

R1(config-if) wr
Building configuration...
[OK]
R1(config-if)
R1(config) #

Dhcp configuration

R1(config) dh
R1(config) dhcp po
R1(config) dhcp pool dhcp1
R1(dhcp-config)
R1(dhcp-config) 10.0.0.2 255.0.0.0 // starting address of dhcp
R1(dhcp-config)
R1(dhcp-config) -router 10.0.0.1
R1(dhcp-config) wr
Building configuration...
[OK]
R1(dhcp-config)
R1(config) dh
R1(config) dhcp ex
R1(config) dhcp excluded-address 10.0.0.2 10.0.0.5 // prevented address (these address won't assign automatically)
R1(config) wr
Building configuration...
[OK]
R1(config)
R1 #
%SYS-5-CONFIG_I: Configured from console by console

R1 dhcp2 Router configuration
=============================================

R1 #
R1 t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config) g0/1
R1(config-if) add 20.0.0.1 255.0.0.0 // default gateway dhcp2
R1(config-if) sh

R1(config-if) #
%LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up

R1(config-if) wr
Building configuration...
[OK]
R1(config-if)
R1(config) dhc
R1(config) dhcp pool dhcp2
R1(dhcp-config)
R1(dhcp-config) 20.0.0.2 255.0.0.0 // dhcp first host address
R1(dhcp-config)
R1(dhcp-config) -router 20.0.0.1
R1(dhcp-config) wr
Building configuration...
[OK]
R1(dhcp-config)
R1(config) dh
R1(config) dhcp ex
R1(config) dhcp excluded-address 20.0.0.3 20.0.0.5 // prevented address
R1(config) wr
Building configuration...
[OK]
R1(config)
R1 #
%SYS-5-CONFIG_I: Configured from console by console

22/08/2016

configuration Example2

R1 router Dhcp1 cofiguration
=============================================================
Router>en
Router t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)
Router(config) R1
R1(config) g0/0
R1(config-if) add 10.0.0.1 255.0.0.0
R1(config-if) sh

R1(config-if) #
%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

R1(config-if) wr
Building configuration...
[OK]
R1(config-if)
R1(config) #

Dhcp configuration

R1(config) dh
R1(config) dhcp po
R1(config) dhcp pool dhcp1
R1(dhcp-config)
R1(dhcp-config) 10.0.0.2 255.0.0.0 // starting address of dhcp
R1(dhcp-config)
R1(dhcp-config) -router 10.0.0.1
R1(dhcp-config) wr
Building configuration...
[OK]
R1(dhcp-config)
R1(config) dh
R1(config) dhcp ex
R1(config) dhcp excluded-address 10.0.0.2 10.0.0.5 // prevented address (these address won't assign automatically)
R1(config) wr
Building configuration...
[OK]
R1(config)
R1 #
%SYS-5-CONFIG_I: Configured from console by console

R1 dhcp2 Router configuration
=============================================

R1 #
R1 t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config) g0/1
R1(config-if) add 20.0.0.1 255.0.0.0 // default gateway dhcp2
R1(config-if) sh

R1(config-if) #
%LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up

R1(config-if) wr
Building configuration...
[OK]
R1(config-if)
R1(config) dhc
R1(config) dhcp pool dhcp2
R1(dhcp-config)
R1(dhcp-config) 20.0.0.2 255.0.0.0 // dhcp first host address
R1(dhcp-config)
R1(dhcp-config) -router 20.0.0.1
R1(dhcp-config) wr
Building configuration...
[OK]
R1(dhcp-config)
R1(config) dh
R1(config) dhcp ex
R1(config) dhcp excluded-address 20.0.0.3 20.0.0.5 // prevented address
R1(config) wr
Building configuration...
[OK]
R1(config)
R1 #
%SYS-5-CONFIG_I: Configured from console by console

21/08/2016

08/07/2016

configuration first Tutorial for your ...!!!!

06/05/2016

What is network switch?
Switch is a advance of router, it will work physical or hardware address (Mac) medium access control. Mac stored on (Nic)network interface card

Mac has 48bit address combination of alpha+numeric. 48 bit address split 24+24
First 24 bit is manufacturer address an second 24 bit is product saler address means physically print on Nic card.

When you power on network switch it will create cam table (content addressing memory) it has ip + mac so switch will compare table then it will send data incase. don't have ip+mac address on cam table switch discard packet.

18/04/2016

Router name its self route a data, it will do three functionality are:

Packet filter
Path selection
Packet forward

1. Packet filter in router data will convert as a packet for example our pc will capable to use only 32 bit but incoming pacets are 64 bit means it will cut 32 bit each also check collision.

2. Path selection means router can find shortest path to reach or send data to the destination so that router save timing, cost, data.

3. Packet forward means if a router found shortest path then it will send packet to the destination.

18/04/2016

Types of network devices?

1.Hub
2.Router
3.Switch
4.Bridge

Why we need network devices for example if you are using modem, will connect maximum four device like pc or laptop. in case 50 pc's are your requirements then we want to use router or switch these devices are share signal equally to connected system. Example 8mbps speed of your connection will share equally to systems via these switch, router. But each network device have specific functions.

1.Hub is a central connecting device in star topology (early days we used this hub) two types of hub 1. Passive hub 2. Active hub

1. Passive hub is network device simply connect to modem then share signal, traffic equally.

2. Active hub also called as multiport repeater it will regenerate data then share signal. ( for example weak signal may drop the data when travel long distance in order to avoid this active hub regenerate signal and make strong then share signal, data ) active hub need electricity power to regenerate signal.

17/04/2016

Types of networking ?
Lan (local area networking)
Man (metropolitan area networking)
Wan (wide area networking)

1. Land (local area networking) means small geo graphical area such as within office, building, room. short distance to communicate each other is called LAN
LAN can transfer data very fast compare to other networks, data can be managed by star topology

2 MAN (metropolitan area networking) means network can share city to city or building tbuliding such as remote network i.e. in a college office will connect to hostel like that. Man is hybrid of a man and wan.

3. WAN (Wide area networking) large geo graphical area network such as country to country
Wan carry data long distance, a collection of multuple lan are connected are separated by a large distance. i.e. Kerala to Mumbai connect networks under sea. So wan network not only connect via sub station to tower. Tower to satilite . satilite to tower then finally tower to substation.

17/04/2016

What is networking!
A group of connected devices can share the resources like printer, scanner, fax then share data, exchange information, communicate to each other is called networking.

13/03/2016

What is networks?

A group of network devices like computer,hub,router,switch all are connected together is called networks.