09-19-2014 02:29 PM - edited 03-04-2019 11:47 PM
Here is my current topology:
ISP Modem --------------------(fa0/0) R1 fa(0/1)-----------------S1-----------------------(fa0/0) R2 (fa 0/1)---------------S2
11.22.33.44 172.16.0.1 172.16.0.2 dhcp 192.168.0.1 192.168.0.2
R1 is the DHCP server.
My R1 is our production router for the rest of our office. I am trying to set u a lab environment within our network by using a Cisco 1841(R2) Router connected to the switch. I've added ACL rules, NAT, and NAT Overload already to R2. When I use dhcp on R2, I am able to access the internet when connected onto the 192168.0.0 network.
Issue #1:
R2 is able to ping R1 and the 172.16.0.0/24 network, but I am not able to ping FROM R1 to R2. I am able to access the internet when connected to R2's network.
Issue #2:
I want to consolidate all my static IP addresses so I excluded addresses 172.16.0.1 to 172.16.0.20 on R1's dhcp pool. However, when I assigned a static IP address such as 172.16.0.5 to fa0/0 of R2, I am no longer able to access the internet. I also cannot ping R1 from R2 anymore. I would like to be able to assign static IP addresses on a few routers of labs that we are setting up. Thanks
Best Regards,
Sean
09-20-2014 02:48 PM
Hi Sean,
Regarding #1:
Regarding #2:
I see no reason why setting an excluded range on R1 and assigning R2 and IP as you did wouldn't work. Only thing I can think of is that you didn't update your ACLs/NAT config to include the new IP address. Can you post your config?
Thanks,
Joe
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