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Recent content by jfyeh

  1. J

    RADIUS and 802.1x -- Help!

    I don't see the DHCP discover making it to the server. I also don't see the RADIUS packets on the switch? Is it somewhere else in the log? Are you sure the client is getting authenticated correctly? Is there logs from the RADIUS service seeing the authentication request? I'm pretty...
  2. J

    Best place to look for internships???

    Cisco has a co-op program where you setup lab re-creates for TAC engineers. It pays pretty well too. The position should be on the job page.
  3. J

    drastically slower internet speeds with 1841 ISR

    Post your config. What features do you have on the interfaces?
  4. J

    Wireless & Gigabit Switch

    It sounds like you already have it ready to go. Any gigabit switch can be used. Just use one port as an uplink to your wireless router. This is essentially extending your layer 2 network to those 5 computers. Look for an 8-port one, in case of expandability and for the 5 port ones you have to...
  5. J

    Help With Router Configuration (1841 ISR)

    There are usually 2 things that can go wrong in these scenario's . Routing or NAT. Since we are using a single static route we can check routing by seeing if we can ping the next hop and some internet site like 4.2.2.2. Try using the next hop address instead of the interface. If that is...
  6. J

    How do I limit bandwidth?

    If you want to limit the bandwidth on the router for specific hosts or services you will need QoS which it doesn't look like this router has. There are some routers where you can install a new firmware called DD-WRT which has QoS functionality. The list of supported routers is here...
  7. J

    Router Firewall question

    When router companies advertise that they have a firewall it's most likely just NAT on the router which is acting like a firewall. NAT allows any inside connections to anywhere to the outside. But it doesn't allow outside connections to your internal network(by default) If you are trying...
  8. J

    Help needed: Cisco VRF

    VRF's are typically used in a MPLS Service Provider device. It sounds like you needed to accomplish failover and someone just mentioned vrf. A VRF allows you to have multiple routing tables on the same router. A provider does this to allow multiple customer to have overlapping networks...
  9. J

    Help: Cisco Router

    What makes you think your getting DoS'd? Are you seeing high CPU during that period? Do you have at least some sort of ACL inbound on your WAN/Internet interface? You would need to know the IP address of attacker to be able to do anything. You can put a deny ip any any for now until you...
  10. J

    Help: Cisco Router

    1.Enable Netflow to see where the DoS is coming from. 2. Then create an ACL to deny traffic from that address
  11. J

    Help needed: Cisco VRF

    Are you referring to MPLS VPN? Are you trying to configure a PE or P device? Are you acting as a provider? Are you only concerned about vrf-lite? What kinda of Cisco device is it? What have you implemented? What is working and what are you trying to get to work? -John
  12. J

    Cisco 851W intermittently actively refuses connections

    It sounds like a bad connection from your ISP. Can you keep a continuous ping to your next hop? Can you keep a continuous ping to somewhere out on the internet? Once you lose your connection again check both pings. If either of those are failing then your provider could be dropping...
  13. J

    Wrong Receiver/speaker setup?

    I'm setting up a new home theater I decided to go with AudioEngine 5 as my fronts and a Yamaha HTR-6040 as my receiver. Audioengine 5: http://audioengineusa.com/store/product_info.php?products_id=77&osCsid=e026db0232e3dfdc75062e37c9c72ea9 Yamaha HTR-6040...
  14. J

    Help needed! VRF + Tunnel Protection + Stateless Failover

    Does the failover work with the encryption turned off? When you say VRF with Tunnel Protection do you mean MPLS TE? If so have you tried to reoptimize?
  15. J

    Need fdisk command for T60

    I had my T60 dual booting Ubuntu and Windows XP. I want to get rid of the ubuntu install so I removed the partitions associated with it. Now when I reboot I get the GRUB errror 17. I know I need to rewrite the MBR. Here's the problem. The HD is SATA and none of my bootable CD's reconize...
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