I just purchased a new Cisco 2811 router and a Catalyst 2960G switch for my office.
And after configuring it for few hours, found that the IP address I assigned to my vlan 1 in catalyst 2960G switch is having IP address conflict.
From the Cisco Network assistant, I found that there's 2 IP addresses showing on my router network topology. The router's FastEthernet interface is configured with IP address 18.104.22.168
At first I thought it was my some other devices is conflicting with my switch and apparently it was sourced from my Cisco 2811 router. This problem also occured in my old Cisco 1841 router.
Even after hard reset and reconfigure, it still gave the same problem. Any reason why such thing happened ?
Theretically and practically the router shouldn't occupy 2 IP addresses for an interface but how come it's happening in my case ?
Is it a nature of cisco 2811 router or something wrong with my configurations ? I start all over again using SDM to configure but it's still the same problem as well.
Someone please help me.