Applying Subnet Networks to Network Devices - CCNA 2: Day 2
Summary
TLDRIn this instructional video, the host guides viewers through the process of configuring IP addresses for three subnetted networks. The tutorial covers setting up IP addresses and subnet masks on various devices, including PCs and routers, and highlights the importance of default gateways. The host also demonstrates the use of the command line interface for configuring network interfaces and explains the concept of 'destination host unreachable' due to the lack of routing between certain networks. The video concludes with a teaser for the next tutorial, which will focus on static routes and default routing.
Takeaways
- 😀 The video is a tutorial on configuring IP addresses for a network with three subnetted networks.
- 🔍 The default gateway for Network 1 is set to 1.1, and the PC in this network is assigned IP address 1.2.
- 📍 For Network 2, the router is assigned IP address 1.65 and the next router is assigned 1.66.
- 🔢 Network 3 uses 1.129 as the default gateway for the router and the PC is assigned IP address 1.130.
- 💡 A subnet mask of 255.255.255.192 is used for all IP addresses due to the networks being subnetted with a /26.
- 🛠️ The tutorial involves configuring interfaces on routers and PCs, including setting IP addresses and enabling interfaces.
- 🔗 The router's serial interface (DCE) requires a clock rate to be set, while the gigabit interface (DTE) does not.
- 🔄 The process includes saving configurations on routers to retain the set IP settings.
- 🚀 After setting up the IP addresses, a ping test is performed to check connectivity between PCs.
- 🚫 The ping test fails due to the lack of routing information between the networks on the routers.
- 🔄 The next tutorial will cover configuring static routes or default routes to resolve the connectivity issue.
Q & A
What was the purpose of the previous video mentioned in the script?
-The purpose of the previous video was to create four subnetted networks, but it was later determined that only three networks were needed.
What are the three networks that were eventually used in the script?
-The three networks used are Network 1, Network 2, and Network 3.
What is the default gateway for Network 1 in the script?
-The default gateway for Network 1 is 192.168.1.1.
What IP address is assigned to the PC on Network 1?
-The PC on Network 1 is assigned the IP address 192.168.1.2.
What is the IP address assigned to Router 1 on Network 2?
-Router 1 on Network 2 is assigned the IP address 192.168.1.65.
What is the subnet mask used for each IP address in the script?
-The subnet mask used for each IP address is 255.255.255.192.
Why is the subnet mask 255.255.255.192 used in the script?
-The subnet mask 255.255.255.192 is used because the networks were subnetted into a /26, which requires this subnet mask for proper addressing.
What command is used to enable the interface on a router in the script?
-The command 'no shutdown' is used to enable the interface on a router.
What is the IP address assigned to the PC on Network 3 in the script?
-The PC on Network 3 is assigned the IP address 192.168.1.130.
Why was the ping from PC to PC2 unsuccessful in the script?
-The ping was unsuccessful because the router did not have a route configured for the network that PC2 was on, as it was not connected to the router's interface.
What will be configured in the next tutorial according to the script?
-In the next tutorial, static routes or default routes will be configured to resolve the connectivity issues.
Outlines
🌐 Network Configuration and IP Address Assignment
The script begins with a tutorial on configuring IP addresses for a network that has been previously subnetted into four networks, but only three are needed. The focus is on assigning IP addresses to Network 1, Network 2, and Network 3, with specific default gateways for each. The subnet mask used is 255.255.255.192, indicating a /26 subnetting scheme. The video demonstrates configuring the IP address on a PC, setting the default gateway on routers, and configuring interface IP addresses on routers with commands entered in the command line interface (CLI). The process includes setting the clock rate for a DC port and ensuring interfaces are active with the 'no shutdown' command. The script ends with the configuration being saved and a brief mention of a future tutorial on static routes or default routes.
🔍 IP Configuration Continuation and Connectivity Testing
This paragraph continues the network configuration process, detailing the IP address settings for additional interfaces on routers and PCs. The script covers the assignment of IP addresses to a router's serial interface and a PC's network interface, with an emphasis on the correct subnet mask and default gateway for each device. After configuring the devices, the script moves on to testing connectivity between two PCs using the ping command. The test reveals that the ping is unsuccessful due to a lack of routing information between certain networks, as the routers do not have interfaces connected to all subnets. The paragraph concludes with a teaser for an upcoming tutorial that will address the configuration of static routes or default routes to resolve the connectivity issue.
Mindmap
Keywords
💡Subnetting
💡IP Address
💡Default Gateway
💡Router
💡Subnet Mask
💡Interface
💡Clock Rate
💡DTE and DCE
💡No Shutdown
💡Ping
💡Static Route
Highlights
Introduction to the process of applying IP addresses to a network with subnetted segments.
Explanation of the requirement for three networks instead of four.
Assignment of IP address 1.2 to the PC on network one with a default gateway of 1.1.
IP address 1.65 assigned to router one on network two with 1.66 for router two.
Network three's router is given the IP address 1.129 with 1.130 for PC2.
Use of subnet mask 255.255.255.192 for all IP addresses due to a /26 subnet.
Demonstration of configuring IP settings on a PC with IP address, subnet mask, and default gateway.
Accessing the command line interface of a router and entering privilege mode.
Configuration of interface zal 010 with a clock rate and IP address on router one.
Assigning IP address 192.168.1.1 to gigabit 0/0 as the default gateway for the PC.
Saving the router configuration and proceeding to configure router two.
Setting up interface serial 010 on router two with IP address 1.66 without a clock rate.
Configuring gigabit 0/0 on router two with IP address 1.129 for network three.
PC2's IP configuration with address 1.130 and default gateway 1.192.168.1.129.
Testing connectivity with a ping command and the discovery of a network reachability issue.
Explanation of the network reachability issue due to the lack of routing configuration.
Announcement of the next tutorial focusing on static routes or default route configuration.
Transcripts
hello guys welcome to dance it Network
on my previous video we create a four
subnetted networks okay but we only need
three networks which is the network one
network 2 and network 3 okay and it's
time for us now to apply the uh their IP
addresses okay so on the network one
will be on this uh portion okay we'll be
using this default gateway do1 1.1 to
this router and this PC okay will get
this IP address the 1.2 all right and
the network 2 will apply it over here
okay as showed on the label the IP
router one should get the uh IP address
1.65 which is here okay and the router
to the
1.66 and lastly the network 3 okay the
uh 1.1 129 uh will be on the uh this um
router okay the default gateway and then
uh the PC all right well this should be
a PC2 okay I'll change
it right and this PC2 you should get the
uh one. 130 okay and we need to use the
subet mass
255.255.255.192 on the each IP um
address that will go into register okay
why it's because um they were subnetted
all right into a slash uh 26 um Network
okay and let's proceed let's register
their IP addresses let's start first
with this
PC I'll IP
configuration all right well I already
put the IP address in here all right you
notice that this is the 1.2 and subit
mask the uh uh 255.255 5255 one92 and
the default gateway should be the uh
router's IP address okay which is on
this gigabit z0 the 1.1 all right and
it's good I'll close this and I'll go to
the uh router
one command line
interface hit
no and then hit enter to get started
type enable to go to the privilege mode
and then comp T to go to the global
config mode and let's go to the U um
interface zal
010
okay
010 and since this is the uh DC Port all
right we need to set the clock rate okay
so type here clock
rate is
128,000 and then I'll give it an IP
address
192.168.1 um 65 okay then space
255.255.255.192
okay so this is the 65 right it's the
router one okay it's correct and then
I'll hit and turn this and then I'll
type here no shutdown to turn on the
interface
okay right and it's good and I'm also
going to um give this um gigabit 0 SL Z
an IP address okay which should be the
default gateway of this PC the uh 1
192.168.1.1 okay let's proceed interface
gabit
0/0
IP address
192.168.1.1 space okay um 255 255.255
5.1 192 okay and type here no shutdown
to turn on the interface and let's save
the configuration by typing do right
okay and it's good I'm close this and
then let's proceed to the router
to
Let's command line interface okay and
I'll say no in here and hit enter to get
started
enable go to the privilege mode and then
compt to go to the global config mode
and let's proceed first on the interface
serial
010 okay it's
correct okay and it should get the IP
address the
1.66 okay well this is a DTE Port well
we don't need to configure a clock rate
right because it's a
DTE okay I'll hit enter on this I'll
give it an IP
address
192.168.1 66 and then um space The subit
Mask should be
255.255.255.192
okay and I'll type here no shutdown to
turn on the interface here we go and
let's proceed onto the next interface um
gigabit 0
sl0 all right and the IP address on this
uh Network 3 is the router okay
it should get the uh
1. 129
okay all
right all right so
IP address
192.168.1.1
129 space
255.255.255.192
okay and then um no shut down to turn on
the
interface all right and let's save the
configuration there we go
all right and I'll close this let's
proceed onto the uh PC2
okay and desktop IP
configuration this should get the uh 1.
130 okay all right so
192.168.1.1 130 sub mask this should be
I'll change the zero to 1 192 and
then the default gway should be the IP
address on this router okay which is
residing on the gigabit 0/0 okay and
it's the uh 1. 1229 okay all right 1
192.168.1
129
okay and I'll close this there we go so
now that all of the IP um addresses are
registered on all of the uh devices all
right right well let's try to uh ping
okay I'll let's say I want to Ping from
this PC to this PC too I'll do
that command prompt and the Ping
right uh IP address in this PC is the uh
1.1 129 right okay so ping
192.168.1.1
129 and you see that it's a destination
host unreachable
okay yeah that is true it's because on
this router all right it knows about
this network it knows about this network
but it doesn't know about this network
because it's not connected on its a
Serial or its interface all right it's
not same as on this router it knows
about this network and this network but
it doesn't know about this network okay
because this is not connected on the uh
interfaces of this router all right that
is why it's not working so on my next
tutorial we'll configure the uh um
static all right static route or the
default route
okay
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