DHCP table

paulineagawin · ‎12-19-2018

Hi! Im having a bit of trouble with packet tracer. im not sure if i made it right because 2 PCs cant renew their ipadd,subnet mask and default gateway but the other one is correct. here is the table that i made

r1------g0/0-----192.168.1.254-----255.255.255.0 int g0/0

------g0/1-----192.168.2.254-----255.255.255.0 ip helper-address 192.168.3.2

------s0/0/0----192.168.3.1-------255.255.255.0 int g0/1

ip helper-address 192.168.3.2

r2------s0/0/0----192.168.3.2-------255.255.255.0 ip dhcp excluded-address 192.168.1.254

------s0/0/1-----209.165.200.225---255.255.255.252 ip dhcp excluded-address 192.168.2.254

ip dhcp excluded-address 10.1.1..2

ip dhcp pool PC1

network 192.168.1.0 255.255.255.0

default-router 192.168.1.254

ip dhcp pool PC2

network 192.168.2.0 255.255.255.0

default-router 192.168.2.254

ip dhcp pool PC3

network 10.1.1.0 255.255.255.252

default-router 10.1.1.2

r3------s0/0/1-----209.165.200.226----255.255.255.252

------g0/0-------10.1.1.2-----------255.255.255.252

Meheretab Mengistu · ‎12-19-2018

Hi,
We will need more information. Please share your network diagram; we need to know which device is plugged in where and which ones are not getting IP addresses.

HTH,
Meheretab

paulineagawin · ‎12-19-2018

oh okay. here it is

paulineagawin · ‎12-19-2018

Meheretab Mengistu · ‎12-19-2018

Please share your config as well.

HTH,
Meheretab

paulineagawin · ‎12-19-2018

Router0#conf t

Router0(config)#int g0/0

Router0(config-if)#ip helper-address 192.168.3.2

Router0(config-if)ex

Router0(config)#int g0/1

Router0(config-if)#ip helper-address 192.168.3.2

Router1#conf t

Router1(config)#int g0/0

Router1(config-if)#ip helper-address 209.165.200.225

Router2#conf t

Router2(config)#ip dhcp excluded-address 10.1.1.2

Router2(config)#ip dhcp excluded-address 192.168.1.254

Router2(config)#ip dhcp excluded-address 192.168.2.254

Router2(config)#ip dhcp pool SERVER

Router2(dhcp-config)#network 10.1.1.0 255.255.255.252

Router2(dhcp-config)#default-router 10.1.1.2

Router2(config)#ip dhcp pool PC1

Router2(dhcp-config)#network 192.168.1.0 255.255.255.0

Router2(dhcp-config)#default-router 192.168.1.254

Router2(config)#ip dhcp pool PC2

Router2(dhcp-config)#network 192.168.2.0 255.255.255.0

Router2(dhcp-config)#default-router 192.168.2.254

paulineagawin · ‎12-19-2018

dhcp works in router1 > PC2

Meheretab Mengistu · ‎12-19-2018

Thank you for posting the network diagram and part of the config. It seems like some commands are missing. Please share the output of sh run on all three routers. Also, sh ip int bri | ex unassigned

HTH,
Meheretab

paulineagawin · ‎12-19-2018

router 0

Router#sh ip int bri | ex unassigned

Interface IP-Address OK? Method Status Protocol

GigabitEthernet0/0 192.168.1.254 YES manual up up

GigabitEthernet0/1 192.168.2.254 YES manual up up

Serial0/0/0 192.168.3.1 YES manual up up

hostname Router0

!

interface GigabitEthernet0/0

ip address 192.168.1.254 255.255.255.0

ip helper-address 192.168.3.2

duplex auto

speed auto

!

interface GigabitEthernet0/1

ip address 192.168.2.254 255.255.255.0

ip helper-address 192.168.3.2

duplex auto

speed auto

!

interface Serial0/0/0

ip address 192.168.3.1 255.255.255.0

!

router rip

network 192.168.1.0

network 192.168.2.0

!

ip classless

!

end

router 2

Router#sh ip int bri | ex unassigned

Interface IP-Address OK? Method Status Protocol

Serial0/0/0 192.168.3.2 YES manual up up

Serial0/0/1 209.165.200.225 YES manual up up

hostname Router2

!

ip dhcp excluded-address 10.1.1.2

ip dhcp excluded-address 192.168.1.254

ip dhcp excluded-address 192.168.2.254

!

ip dhcp pool SERVER

network 10.1.1.0 255.255.255.252

default-router 10.1.1.2

ip dhcp pool PC1

network 192.168.1.0 255.255.255.0

default-router 192.168.1.254

ip dhcp pool PC2

network 192.168.2.0 255.255.255.0

default-router 192.168.2.254

!

interface GigabitEthernet0/0

no ip address

duplex auto

speed auto

shutdown

!

interface GigabitEthernet0/1

no ip address

duplex auto

speed auto

shutdown

!

interface Serial0/0/0

ip address 192.168.3.2 255.255.255.0

clock rate 2000000

!

interface Serial0/0/1

ip address 209.165.200.225 255.255.255.252

!

interface Vlan1

no ip address

shutdown

!

router rip

version 2

network 192.168.0.0

default-information originate

no auto-summary

!

ip classless

ip route 0.0.0.0 0.0.0.0 Serial0/0/1

!

end

router 1

Router# sh ip int bri | ex unassigned

Interface IP-Address OK? Method Status Protocol

GigabitEthernet0/0 10.1.1.2 YES manual up up

Serial0/0/1 209.165.200.226 YES manual up up

hostname Router1

!

interface GigabitEthernet0/0

ip address 10.1.1.2 255.255.255.252

ip helper-address 209.165.200.225

duplex auto

speed auto

!

interface Serial0/0/1

ip address 209.165.200.226 255.255.255.252

clock rate 2000000

!

ip classless

ip route 192.168.0.0 255.255.252.0 Serial0/0/1

!

e con 0

!

line aux 0

!

line vty 0 4

login

!

end

Meheretab Mengistu · ‎12-19-2018

Pauline,

PC2 was getting IP address because there is a default route on Router2 ( ip route 0.0.0.0 0.0.0.0 s0/0/1) pointing back to Router1; however, there is no route to the other networks connected to Router0. I saw that there is a routing issue.

You run RIP on Router0 and Router2. You will need to modify the advertised networks a little bit as follows:

On Router0:

router rip

network 192.168.3.0

!

On Router2:

router rip

network 192.168.3.0

!

HTH,

Meheretab

HTH,
Meheretab

luis_cordova · ‎12-19-2018

Hi @paulineagawin,

Also, in router 0 you must add the commands in the RIP configuration:

version 2

no auto-summary

Regards

paulineagawin · ‎12-19-2018

it worked! thank you!!!

paulineagawin · ‎12-19-2018

oh my god!

it works!!!

thank you thank you so much! whats left is ACL but I can handle it

again thank you thank you so much!

luis_cordova · ‎12-19-2018

Hi @paulineagawin,

You're welcome, we're here to help you.

Regards