DHCP Failed. APIPA is being used

[mihaimihai2026]

I will leave my project here if someone can help me why the pc's from a network are recieving ip's from DHCP Server, but others don't. Please help me if you know. I'm talking about the Laptop, PC 41,42,51,52 and 53. And  in ips.txt you can find how i divided each network. Thank you!

[Flavio Miranda]

@mihaimihai2026 

 I will list a few problem.

You need the command "ip helper-address" on router that is not direct connected to the DHCP server. R2,3,4 and 5.The command must be placed on the lan interface of the router

but, you also have addressing problems. You are using the same ip address in different routers. We can see message like this one

Router(config-router)#!%IP-4-DUPADDR: Duplicate address 147.227.155.213 on FastEthernet0/1, sourced by 0009.7C32.B23B

With that, your routing between routers is not working.

And, you installed modules on the router because you are using up to 4 interface but, it seems this is not working. As you can test, you can not ping from one router to the other, even when the IP address is correct configured.

I would suggest to you, instead intall module on the router, use a router that supports 4 interface natively. Use the model Router-PT instead 1841 model.

Last, PC 53 is behind a wireless router and will get IP  address from the wireless router. Is possible to get IP address from DHCP but you need to connect the wireless router using the LAN interface and not the Internet interface.