Correct me if I am wrong interVlan routing enables routing between all vlans present in switched enviroment, , if all VLANs end up routed to all other VLANs it raises certain security concerns. In a scenario where there are 50 VLANs and its really hard to build ACLs for every VLAN. Can anyone recommed any CISCO documentation or white paper which tells what type of security measures should we consider while enabling interVlan routing.
If we want to restrict interVlan routing what option do I have apart from implementing ACLs.
[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...