Routing

Hi all, We use an infoblox device as our DHCP server, so in principle all MAC addresses are known on this server. If you want to do authentication based on MAC address, can you speak -one way or the other- with the Infoblox device?

We have 2 4500x switches with Ent Services licences.  The plan is to replace the current core routers with a L3 switched core using the 4500x with VSS.  The core will connect 3 building data closets, a local data center and 18 remote WAN sites.  Engi...

I have a 2811 with 512 of memory installed (two by 256).  The router has been sitting spare for sometime and I know there was once a memory problem with it long ago.  It has two 256M Non ECC DIMMs installed and seems to work fine.  I recently tried t...

in our org. we have two vpn link having 1 isp lan ip 10.190.x.x/24 and 2nd isp lan is 10.191.x.x/24.  2 internet link . 2 vpn is backup link . . now i have to restructure the networking due to shifting of link. currently if primay down. seconday link...

A Service Provider we are working with, tells us that BGP Community (transparency) is available, but BGP community (routing) is still under internal discussion.Do you know what is the difference between both? What is missing by not implementing BGP r...

Hello,I got a Nexus 7000 supervisor module recently, I met a SNMP problem for this moduleI would like to know which specific OIDs to use to monitor the following using SNMP on a Nexus 7000 supervisor module:- Port status- CPU total utilization- Power...

Hello,Please help me with this problem. Attached network diagram & router's configuration for ref.Requirement,To route the traffic from R1 to R3 via RSVP-Tunnel inside VRF "a"Issues:1.MP-BGP routes not being exchanged between the router's. However th...

Hi I have a Cisco 876 router, I need to connect ethernet WAN link, While configuring IP address am getting below error.yourname(config)#int f0yourname(config-if)#ip addres 172.30.1.0       1.    255.255.255.0% IP addresses may not be configured on L2...

I have an interface on a router connected to an any-to-any virtual ethernet service.  The different sites have different carrier bandwidths, so to prevent over-saturation of any of them, the router at my HQ is going to act as a hub (99% of traffic is...

Friends, please let me know if there any free tools available for uploading and downloading configurton via snmp v2c rw access.I have checked and many are trail versions thanks

 I have set up two 3925 in a hot-standby configuration.If i configure track with IP SLA, the IP SLA stops probing (ping) as soon as at least one interface goes to standby. IP SLA probes are declared Down. If all standby interfaces go to Active (by ma...

Normally on the route-map. I would just enter:set ip next-hop verify-availability 10.24.192.4 track 1 for this... But on the Catalyst 4500X, the verify-availability command is not valid, so I cannot apply the tracking. How do I perform this task with...

 Hi I configured the cisco to get with a static NAT to reach my internal WEB server at adress 10.10.10.231, from outside. It is well configured. I have a registered domain , and pings works allways ,(from outside the lan ) reach the router. The probl...