cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
274
Views
5
Helpful
2
Replies

Error DHCP FAILED APIPA IS BEING USING

josueguzman
Beginner
Beginner

I am getting this error on 4 computers that are in red.
Please help me.
This is the vlsm I used

1 Accepted Solution

Accepted Solutions

Martin L
VIP Advisor VIP Advisor
VIP Advisor

you are not using ROAS, should you?  Perhaps not since you have 2 links Router to switch,  Router LPZ1-01 vlan 108 is in Dot1Q mode and that is a trunk to switch but LPZ1-01 interface vlan 104 is not in dot1Q mode so it should be an access config (not trunk) on L2 Sw 3 switch.   If you want Dot1Q trunk router to switch, use dot1Q on single interface with sub-interfaces on router.  If not, use access config on L2 switch.

So, if not ROAS, replace L2 Sw3 with

 

interface GigabitEthernet0/1

switchport access vlan 104

switchport mode access

!

interface GigabitEthernet1/1

switchport mode trunk

!

interface GigabitEthernet2/1

switchport mode trunk

!

then re-do ipconfig  /renew on PCs on left side. 

THen, you need static routes or routing protocol to exchange routes between routers

 

Regards, ML
**Please Rate All Helpful Responses **

View solution in original post

2 Replies 2

jonar.isip
Beginner
Beginner

Can someone help me for this one.

Martin L
VIP Advisor VIP Advisor
VIP Advisor

you are not using ROAS, should you?  Perhaps not since you have 2 links Router to switch,  Router LPZ1-01 vlan 108 is in Dot1Q mode and that is a trunk to switch but LPZ1-01 interface vlan 104 is not in dot1Q mode so it should be an access config (not trunk) on L2 Sw 3 switch.   If you want Dot1Q trunk router to switch, use dot1Q on single interface with sub-interfaces on router.  If not, use access config on L2 switch.

So, if not ROAS, replace L2 Sw3 with

 

interface GigabitEthernet0/1

switchport access vlan 104

switchport mode access

!

interface GigabitEthernet1/1

switchport mode trunk

!

interface GigabitEthernet2/1

switchport mode trunk

!

then re-do ipconfig  /renew on PCs on left side. 

THen, you need static routes or routing protocol to exchange routes between routers

 

Regards, ML
**Please Rate All Helpful Responses **

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Recognize Your Peers