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  1. smartobi

    Cisco Switch Catalyst 3500 series XL (Boot failure)

    Hi, I have a Cisco Switch Catalyst 3500 series XL which does not boot any more. The error message is "The system is unable to boot automatically because there are no bootable files to boot." The flash is initialized but it wouldn't boot. I want to know if anyone has encountered this kind of...
  2. smartobi

    How can I block IP addresses on a Cisco Router?

    Thanks G. I have applied the rules you gave me and it works. Thanks.
  3. smartobi

    How can I block IP addresses on a Cisco Router?

    I have a Cisco 2500 series router. We run a small ISP. Right now I have a 126 IP addresses and I only need about 25 IP addresses for now. Please can someone help me with information on how to block the other IP addresses so that they cannot pass traffic thru the router.

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