Other Network Architecture Subjects

I have a 2651 connected to an 831 across GRE/Crypto tunnels. The 2651 is configured to support multiple 831 devices with DMVPN and hence is the hub site. The 831 is the spoke site. The GRE and crypto tunnels are up and operational. I'm able to pa...

We have a small site with a Cisco 4506 as a Layer 3 Core Switch (Supervisor Engine II Plus, IOS 12.2). We use a 24 port 1000Base-T module (WS-X4424-GB-RJ45) for connecting some servers (Subnet 1).We use two 48 port 100Base-T modules (WS-X4148-RJ) for...

Im trying to implement port security on a cat 4000 running ios 12.1. I am trying to restrict each port to 1 mac address. The commands listed in cisco's docs do not take and I get an invalid input error. The commands I am trying are "switchport port-s...

How does the use of a Dsine power hub effect the operation of VLANs on calatalyst switches ? in the sense that i imagine data from seperate collision+broadcast domains from the switch become merged into the single broadcast domain of the power hub an...

HiI am in the process of designing a switched solution that will be using 6500 switches (Backbone / Distribution) with 3750´s as access switches. We have a requirement for dynamic VLANs and I had initially thought of using VMPS for this purpose. I ha...

HiHow is it possible that 2950 and 3550 switches ip addresses are changed afterwhile by DHCP (3640 serving on a same subnet) - even if <no service config> and <write memory> commands have been issued on them?

Hi there,Recently, my ospf network become unstable for quite unknown reasons. Basically, the interface/layer 1 is totally not down, but somehow is become "dizzy".For fast action, need to deactivate network and activate back under ospf.By the way, bel...

Please refer to the attached Visio diagramI have 2 host that are taking different paths to a mail server. When you perform a tracert, Host A takes Path A, while Host B takes Path B.Is this because of the traffic share count 1 line?Will this path be c...

happy new year,i want to allocate my bandwidth.i have 3 location,A,B,C.A is connected with B and B is connected with C.i want to allocate 50% bandwidth for location B(local lan ) and 50 % for location C.basically both locations B and C are accessing ...

On a 6500 running IOS ver. 12.2x and 720's is the following command the way to assign 1 or more VLAN's to a trunking port?switchport trunk native vlan <vlan id>From the documentation I've been able to find this seems to only apply to .1Q vlans and no...

How can i log if im getting DDOS attacks.....i tried logging command but seem to only log internal to outside...am i doing something wrong?Thanks

hii have a 2691 router accidently its ios erased from flash.now only rommon is available.in rommon only dnld command is there i tried almost all the possible options to load tghe ios but failed.pls suggest a solution.Binoy

Hi there,Normally, we used the prefix term to highlight how many routes/networks are installed in the routing table, how many prefix are going to advertised and so forth.If we look at sh ip bgp summary:Neighbor V AS MsgRcvd MsgSent TblVer...