Acting as a DHCP Client

Setting an IOS device to be a DHCP client is easy. The command is supplied in interface configuration mode. Instead of supplying an IP and mask, the IP address command is used to specify DHCP:  Router(config)#interface fastethernet0/0  Router(config-if)#ip address dhcp  This is ...

RTS/CTS

The 802.11 standard defines request-to-send/clear-to-send (RTS/CTS) as an optional function of 802.11 to regulate the transmission of data on the wireless LAN. RTS/CTS can be set in the access point or a radio card individually, or on both devices at the same time. In most cases, the RTS/CTS functio...

Avoid Security Through Obscurity

When reviewing publications and commentary about security principles, you frequently encounter the postulate "security through obscurity is not security." Although it is said often, it is frequently misunderstood and is used as an excuse or justification for all sorts of security ills. Let's consid...

Preventing Unwanted Neighbors Using Passive

Interfaces When an EIGRP network configuration subcommand matches an interface, EIGRP on that router does two things: Step 1. Attempts to find potential EIGRP neighbors by sending Hellos to the 224.0.0.10 multicast address Step 2. Advertises about the subnet connected to that interface In some...

RIP Route Summarization

Summarizing routes in RIP Version 2 improves scalability and efficiency in large networks. Summarizing IP addresses means that there is no entry for child routes (routes that are created for any combination of the individual IP addresses contained within a summary address) in the RIP routing table, ...

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