Switching

Hi,I'm building a lab and want to know if it's possible to assign different dhcp pools to a vlan. I want to use the built-in dhcp server in a 2811 router. I've build a router-on-a-stick with 3 sub-interfaces and 3 vlans. I get in all the 3 vlans an i...

Hello,I just did my CCNA certification during night class because i wanted to know how to manage the network in my own business.I did set up and configure my network which consists of 52 computers. Everybody is able to communicate with each other bu...

Lately, some users in our network (a gigabit switched network) have been experiencing intermitent loss of connectivity to their network servers/resources. The message reads: "The connection to the remote computer was broken. This may have been caused...

I cant find anywhere on Cisco's website on how to do this or anywhere else for that matter.

Hi all, I have a very basic setup. I have a 2621 with 2 FE ports. On one of the ports, I gave it an IP address of 10.x.x.199/16 (10.2.255.255 is our lab network). Then I gave it another IP address of 192.169.209.2/24. This is an interface on the de...

hi,what is the difference between a access control list and a firewall?

I am unable to get my back to back serial line to stay up. I configure 2 2501 routers as such:Router1e0 - 10.0.1.254 /24s0 - 10.0.2.254 /24s1 - 10.0.3.254 /24Router2e0 - 10.0.4.254 /24s0 - 10.0.5.254 /24s1 - 10.0.6.254 /24Router 1 has the DCE end of...

Hi, Over last few weeks we are having intermittent difficulties in connecting to unix/microsoft servers, where our e mails and Microsoft documents are stored. We will get notices on pcs, that we are no longer connected to server, and after a few minu...

in the cat-2950 config there's the following statements:no spanning-tree optimize bpdu transmissionspanning-tree extend system-idCan anybody please point me to a doc where I can read up on these commands?thanks.

Hello,I have a question about the following:Subnet 1: 10.0.0.0/16Subnet 2: 10.1.0.0/16Subnet 3. 10.7.0.0/16Subnet 4: 10.8.0.0/16Are the above valid/unique subnets based on what I've given?The problem.Host in subnet 1 cannot ping a host in subnet 2 or...

I know I am talking old technology here so bear with me. I am needing to replace two switches soon. The first switch minimum requirements are 12 ports 10/100 TX (only) and one 10/100/1000 TX. The second switch minimum requirements are 12 ports 10/100...

HiI have 1751 router with fastethernet assigned an ip of 172.20.7.88/22. Other pcs are on same subnet. I could not ping any of the host or my gateway 172.20.4.1/22. My fastethernet is up and lineprotocol is up. When I check the arp cache i see a inco...

We have cisco 2950 catalyst switch .we hv 1 MBps internet connection through modem comming into catalyst switch 2950.but after some time running ok port light gets orange & we loose connectivity.but it runs on 128 kpbs ok. switch is not configure.wha...

Hi All, I would like some light into the weird behaviour of IP INSPECT. Here is my setup: I have 3 sites, each having its own Router Site A cisco 1721 Site B cisco 3745 Cite C cisco 1721 B is the main Router and A and C are connected to it with FR-AT...

Hi all,Right now i have 6 2950 switches all in same subnet and connecting different deprtments.we have 2 routers and Pix 506e.Now I m told to create Vlans in a way where we can use some departments using one first ISP-Line and rest on 2nd ISP line.I ...