Other Network Architecture Subjects

I have one site with 8 3640 routers connected to catalyst 3524, almost all of them are getting late collision errors. I looked on Cisco's site and it said possible causes are bad NIC, wrong number of hubs, or bad cabling. I seriously doubt any of the...

Does anyone know if DFM 1.1 IDS 1.1.1 support Catalyst 6500 MSFC2. I am continue to get performance message from the DFM even after applying the DFM 1.1 IDS 1.1.1 patch. The error are as follows:InCharge Domain : DFM MSFC MSFC-172.22.41.1-15 Opera...

Hi there,We have few CATalyst 4006, 6509 (layer-3 capable)and few Smartswtiches 6000, 9000 (cabletron) and 3Com. This mesh form a huge layer-2 flat networj and we are having problen with broadcast traffic.So far i only have experienced with Cisco pr...

MY 2610 router had 5 serial line protocols down. My telcomms company has verified that all the lines are ok. One of the interfaces now is up. I dont know how I can debug the router to check what the problem may be. If I use the clear interface comman...

I have a 4006 switch which has a L3 module. documentaions say that the 32-10/100 ports on that card are purely layer 2 ports, does this meen that I can't create vlans in these ports? if I a can, can I route traffic between them? Also if I add a 48por...

Hi.I was wondering if I could get some assistance with determing if the IOS, on my MC3810 routers, is vulnerable to the SNMP vulnerability.I went to page from the IOS Upgrade Planner site that talked about the SNMP vulnerability, but I didn't see my ...

I have a new cisco 2600 router. It is used to segment beetween 2 internal lan nets - 10.10.0.0 & 10.80.0.0.I have the interfaces set with correcct IP. THey are both up. From the router I can ping all stations on either network fine.I can not ping fro...

I have a 2611 router which I use for internet connection. I have 4 administratively up interfaces. Ian using NAT inside for the three inside interfaces and and NAT outside for the Internet connection interface. I have a pool of 4 legal ip addresses w...

Hi,Im wondering what causes the packet drops when i do a traceroute from www.traceroute.org to our network. After my border router interface IP, all i see are asterisks. My network setup is that i have a firewall right below my router. And everyth...

Hi all , looking at the ethernet controller counter in our 2912Xl switch I've found that the "No dest,unicast " counter is increasing. The ports I'm looking into are grouped with command " port group 3 distribution destination" and are connected to t...

Hi, I Have an 3640 router with an fast erthernet interface.On that interface i have 2 subnets on one physical segment connected.My question is if i go from one subnet to the other subnet i am going over the fast ethernet interface, am i having the fu...

Hi,I would like to know if it is possible to send/receive SNMP messages to/from 761 router to obtain router information (MIB information)?.Thank you.

how can we use E1 modems with the routers.

I'm trying to get a better understanding of summarizing addresses in my access lists. I have followed some postings on the old Q&A forums and have read the O'Reilly Cisco IOS Access Lists book. One example I have is to deny only the four hosts with t...

Hello, Just need to know anyone has configure Cisco 4006 for L2 to interconnect with 3rd party switch ?Any setting need to disabled activated normal spanning tree ?