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  • Users: dnels
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  1. dnels

    BGP not failing over with "neighbor x.x.x.x shutdown" command

    Have you tried a traceroute from the Internet to make sure that the route is changing and you are getting to ISP2 when you turn down BGP to ISP1? The default route you have will cause problems because it is based on the state (up/down) of the link and not the health of the networks on the other...
  2. dnels

    Access-filter for DNS???

    Have you done a 'sho access-list 101' to see if there are any packets being permitted or denied?
  3. dnels

    Multicast Problem (Cisco Cat6500's)

    James, With heartbeats every 5 minutes you will see the (S,G) entries disappear because of the 3 minute timeout. Heartbeats every 2 minutes would be a lot more efficient on the network side. You should see the (S,G) entry disappear in the RP also. But in the RP, the path to your destination...
  4. dnels

    CompTime - Feedback Please

    Ripper, It's been a while since I managed an operations group. I've had five years in operations management and 10 years in technical management. The first issue I see is that you haven't defined (hammered) into YOUR management what your job is. Do you manage employees timesheets or service...
  5. dnels

    WCCP on 6500/MSFC Native IOS

    Thanks for sharing your experiences..
  6. dnels

    Clients lose network connection at random times !!

    Johan, Have you done a 'sho int' on the switchport to see if there are any errors? On the router connected to the vlan/switch I would do a 'sho ip arp' for the servers ip address to see which mac-address is getting into the arp table of the router. If any. Then do a 'sho mac-address-table' on...
  7. dnels

    Strange MAC counters

    DUH, Unicast frames to a destination whose entries are not in the cam table are flooded to all ports in the vlan. Dave
  8. dnels

    Strange MAC counters

    OK, I can see the 1 rcv-broadcast for 66 bytes being a BPDU meaning this was connected to another switch. The switchport on the other side of this port is probably blocking. The broadcasts will be forwarded on all ports of the vlan and dropped on the other switch. The multicast is probably...
  9. dnels

    CISCO 1721, NAT and ADSL

    First thing I notice is there is no IP NAT INSIDE on your fastethernet0 interface Dave
  10. dnels

    Can you spread a vlan over a t1 link via cisco routers?

    If you're trying to support a broadcast application you could use ip helpering. Can't think of many other reasons, maybe security, to span a vlan between sites.
  11. dnels

    Where do i get the best books for CCNA certification?

    Apoorva, Don't know if you realize this, there is a Cisco Certification forum here with all sorts of folks going through the same process. You can probably pick up additional information there. Good Luck, Dave
  12. dnels

    Hey all, Ok, here is the situati

    Patrick, Not 100% sure how to set it up using a proxy. Anyone out there help? My only other thought is to use policy routing on the serial interfaces coming from your remote sites to the 3640. I would implement this off hours and do a lot of testing. This may also force the router to use...
  13. dnels

    Hey all, Ok, here is the situati

    Patrick, The problem is if you change the default router to point there you will end up sending your requests to your outside interface on the PIX, and probably end up with a nasty loop. Pix to router, router to Pix, Pix to router, etc. Leave the default route the way it is. You need to point...
  14. dnels

    Hey all, Ok, here is the situati

    Patrick, What you have is a catch-22 situation. You need the default route in your 3640 to route the outside of your firewall to the Internet. This also causes any requests from the remote sites to bypass the firewall. You will need to use the firewall as your web-proxy for your remote users...
  15. dnels

    Hey all, Ok, here is the situati

    Your default route on the 3640 points out the serial interface. If you have not set up the PIX as a proxy, www.yahoo.com is reolving to 64.58.76.178. This will get routed out your serial interface, not to your PIX. Unless your service provider is routing your internal address for you. There is...
  16. dnels

    OSPF and RIP question

    In your 'router ospf' you have BRI0 as a passive-interface. Dave
  17. dnels

    traffic to take same path bi-directional path.

    So, if you sho ip route to rtrb on rtra the best path is via the 32k path, or are there multiple equal cost paths? And the same sho ip route to rtra on rtrb show what? You could always punish the 128k circuit by manipulating the bandwidth or the delay on the interface but you need to be sure...
  18. dnels

    traffic to take same path bi-directional path.

    So router b and router a have multiple paths a 32K path and a VSAT path?
  19. dnels

    Hey all, Ok, here is the situati

    Off of what interface is the PIX located? And I am assuming it is a web-proxy in all the browsers at the remote office? Does the Pix have the routes to the remote offices? Dave
  20. dnels

    traffic to take same path bi-directional path.

    I don't think I understand your configuration. Your path one way is: RTRa == 32k == RTRb ==> somewhere On the return trip you get: Somewhere ==> RTRc == Some connection == RTRb == 32k ==RTRa You want: Somewhere ==> RTRb == 32k == RTRa What is the connection from RTRc to RTRb? Is the...

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