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Telnet to multiple subnets (Cisco Router)

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  • Telnet to multiple subnets (Cisco Router)

    Hello. I need to find a way to telnet to all devices within multiple subnets. Not sure how to do it. I can telnet into all the routers just fine but I have microwave devices that I cannot telnet to that are connected to these routers. I can however, plug a laptop into the microwave device, change my ip subnet on my laptop to match that of the microwave device and I am able to get in that way, just not accross the network. Since all my routers end with a subnet of .252, I belive this is the problem but IT won't let me change it to 0. Thanks.

    Scenario:


    I have Cisco 2811 routers at the following addresses:

    Site 1
    Ethernet 0/0 192.168.200.242 255.255.255.252
    Ethernet 0/1 192.168.200.230 255.255.255.252
    Int. VLAN1 192.168.200.94 255.255.255.224

    Site 2
    Multilink1 192.168.200.225 255.255.255.252
    Multilink2 192.168.200.237 255.255.255.252
    Multilink3 192.168.200.233 255.255.255.252
    FastEthernet0/0 192.168.200.229 255.255.255.252
    Int. VLAN1 192.168.200.30 255.255.255.224

    Site 3
    Multilink1 192.168.200.226 255.255.255.252
    FastEthernet0/0 192.168.200.241 255.255.255.252
    Int. VLAN1 192.168.200.62 255.255.255.224

  • #2
    Re: Telnet to multiple subnets (Cisco Router)

    Add a second nic to you local machine and use an IP/Netmask that is within the network of the microwave device then add a manual route to the route table on your local machine. This would allow your local computer to route traffic destined for that network. I doubt you can do this though since your IT staff won't allow you to even change your network mask.

    http://www.microsoft.com/technet/pro....mspx?mfr=true

    The following is an example route:

    Route add 172.20.255.0 mask 255.255.255.0 172.20.234.232 metric 2 if 3

    The route in this example means that to get to the subnet 172.20.255.0 with a mask of 255.255.255.0, use gateway 172.20.234.232, and that the route has a cost metric of 2 (for example, the subnet is 2 hops away), using interface 3.
    Last edited by ahinson; 19th November 2008, 21:30.
    Andrew

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    • #3
      Re: Telnet to multiple subnets (Cisco Router)

      Ahinson, Thanks for the quick reply, I did not think of that, I will try today as I visit my customer's site and get back to you.

      Regards, Ken

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