How to configure Networks settings for Internet sharing?

Hi,

I have two computers in this setup: a Macbook Pro which is connected to internet through Wifi, and and iMac 2009 connected to the Macbook Pro through ethernet.

I want to receive internet on my iMac through the ethernet cable.

The internet sharing feature on Mac seems to be very random: one time it works with certain settings and the next time it won't work with exactly the sea settings.

Here are the settings that I have on the Ethernet interface, but it doesn't always work:

Macbook Pro (acting as the router):
Configure IPv4: Manually
IP Address: 192.168.2.1
Subnet Mask: 255.255.255.0
Router: -
DNS server: 8.8.8.8

iMac (acting as the client)
Configure IPv4: Manually
IP Address: 192.168.2.2
Subnet Mask: 255.255.255.0
Router: 192.168.2.1
DNS server: 8.8.8.8

Could you please tell me what is wrong? What is unnecessary in what I did?
I'm not sure what I'm doing so let me know why it's unnecessary.

By the way, I put 8.8.8.8 as the DNS server on both because at some point it did solve the problem when Internet was working but DNS was not.

Also, when I try to renew the DHCP lease, it sometimes comes up with some weird IP address like 169.254.191.49 and Subnet Mask: 255.255.0.0.

Why does it choose an IP like that instead of 192.168.2.1?!
It seems to behave erratically for no reason…


Thanks in advance

 

Hi there, thank you for your explanation.
Please note that these are the settings on the Ethernet interface.

But on the AirPort interface, the IP address that the router assigned the Macbook Pro is 192.168.0.11.

Regards