Currently I have (2) 2621 (running IOS12.1) routers and (2) 3550 switches and studing for my CCENT. I need to upgrade the IOS's on all of them but I do not have a service contract or warranty with cisco. They were purchased on EBAY. The DHCP Feature is not working on the routers. I am unable to setup DHCP pools or set the DHCP feature when configuring an interface. Is there a work around for this or a way to upgrade the IOS? I am just trying to share my home internet, to 3 workstations on my switch.
I am afraid that there is not an answer to this question that will make you happy. Without a service contract there is not a legitimate way to get the IOS upgraded. That is one of the issues when purchasing equipment from sources like EBAY that you get the equipment "as is" and upgrades are problematic.
Although the device is EoL there are more recent ios versions available than the one which we are running. So although the ios version I'm trying to get will have vulnerabilities, there will be fewer than the ios version that I'm currently running
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...