12-13-2020 11:28 AM - edited 12-13-2020 11:41 AM
I have one router configured with two gateways 192.168.5.1 and 192.168.1.1, I need to combine these to form one network and then apply static routing to the new network(network 3). Finally I must configure NAT so that there is communication between all. I am a student and we are permitted to reach out for help from the networking community. I'm not looking for all the answers, just a push in the right direction. Should I remove one gateway and use it for network 3 and then bridge the two switches of subnet 1 and 2? Or is this when supernetting comes into play? I tried to upload the packet tracer, but it's not supported. I really want to get this with as little help as possible, but I am struggling here.
I have added a zip file with packet tracer and instructions that I am trying to implement.
Solved! Go to Solution.
12-15-2020 11:25 AM
Hello,
I am not sure I understand the IP addressing you have used in Network 3. The devices have IP addresses in the 192.168.11.0/24 range, but their default gateway is 20.0.0.2, which is the serial interface ? The interface these hosts are connected to on the router is FastEthernet0/0 with IP address 192.168.10.1/24. This needs to be the default gateway, and the clients need to be in that range as well. NAT between both networks can then be configured fairly simply.
I have changed the DHCP scope on the server, and added the NAT config. Review the attached file.
12-13-2020 11:33 AM
Hello,
you can upload the Packet Tracer project (.pkt) file, but you need to zip it first.
12-13-2020 11:39 AM
12-13-2020 12:34 PM
Hello,
--> New IP configuration that combines Subnet1 and Subnet2 into NetworkA
--> Class C network
There is no way to 'combine' the existing networks 192.168.1.0/24 and 192.168.5.0/24 into one, class C network. Bridging is not supported on your router. Are you allowed to add hardware (a switch in your case, between the host in the existing networks, and the router ?
12-13-2020 12:44 PM
Hello and thanks for your reply. Yes, I may do anything that I want as long as the requirements are meet. I do not understand why they are asking me to combine these two subnets if this is not possible. I feel as if I am not understanding something. If they can not be "combined, do I just get rid of one of the subnets and put all the hardware from subnet 2 on subnet 1?
I'm open to any ideas you may have.
I realize these are novice questions, I appreciate your time.
12-13-2020 01:12 PM
Could I place a switch after the router, use 192.168.1.0/24 as Network A, but with VLANS to separate the networks. Then use 192.168.2.0/24 for Network 3?
12-13-2020 02:16 PM
Hello,
Vlans are essentially the same as subnets. Apparently you are only allowed one network. I cannot figure out what they want. Can you ask for clarification from whoever gave you the instructions ?
12-13-2020 02:48 PM
12-14-2020 10:24 AM
12-15-2020 09:56 AM
Hello Georg,
Thank you for your help, I see what you did here and this does work. I wanted to show you what I ended up submitting. The only problem is I could not get NAT configured properly. In my network I should be able to ping from network A to network 3 using NAT, but I could not get this to work. I configured static Nat on the router labeled server and I believe it is working properly. For the second router(subnet router) I wasn't sure if I should be using dynamic NAT or PAT(overload).
12-15-2020 11:25 AM
Hello,
I am not sure I understand the IP addressing you have used in Network 3. The devices have IP addresses in the 192.168.11.0/24 range, but their default gateway is 20.0.0.2, which is the serial interface ? The interface these hosts are connected to on the router is FastEthernet0/0 with IP address 192.168.10.1/24. This needs to be the default gateway, and the clients need to be in that range as well. NAT between both networks can then be configured fairly simply.
I have changed the DHCP scope on the server, and added the NAT config. Review the attached file.
12-15-2020 02:54 PM
Hi Georg,
This works perfectly. I am not sure what the 20.0.0.2 is for, this is how it was configured from the instructor. I don't understand why there is even an ip address configured for Se3 if it is not being used. Since the server had this as the preconfigured address, I thought that I was supposed to somehow make this work. I have already submitted the assignment, which is ok, I'm more concerned with learning how to properly configure networks than getting a perfect grade.
We covered a lot of material in a short 8 week class, so to say the least it has been overwhelming.
I have a stack of cisco routers and switches and I'm looking for labs that I can do at home to learn with them..any ideas?
Thank you very much for all your time and help, I greatly appreciate this!
Chris
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