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CWMP is a text based protocol. Orders sent between the device (CPE) and auto configuration server (ACS) are transported over HTTP (or more frequently HTTPS).
Because SNMP is designed to allow administrators to monitor and configure network devices remotely it can also be used to penetrate a network. A significant number of software tools can scan the entire network using SNMP, therefore mistakes in the configuration of the read-write mode can make a network susceptible to attacks.
MRTG uses the Simple Network Management Protocol (SNMP) to send requests with two object identifiers (OIDs) to a device. The device, which must be SNMP-enabled, will have a management information base (MIB) to look up the OIDs specified. After collecting the information it will send back the raw data encapsulated in an SNMP protocol.
NetFlow is a feature that was introduced on Cisco routers around 1996 that provides the ability to collect IP network traffic as it enters or exits an interface. By analyzing the data provided by NetFlow, a network administrator can determine things such as the source and destination traffic, class of service, and the causes of congestion.
An example of the effect of IGMP snooping on the traffic in a LAN. IGMP snooping is the process of listening to Internet Group Management Protocol (IGMP) network traffic to control delivery of IP multicasts.
The IETF developed the Simple Network Management Protocol (SNMP) in the late 1980s and it proved to be a very popular network management protocol.In the early part of the 21st century it became apparent that in spite of what was originally intended, SNMP was not being used to configure network equipment, but was mainly being used for network monitoring.
An example of how to configure a simple, three switch MSTP topology wherein a layer-two access switch carries four VLANs and has two uplinks to two distribution switches, can be found here: MSTP Configuration Guide A good configuration view, from the above-mentioned example shall be: S3# show spanning-tree mst
Example showing how DHCP snooping works. In computer networking, DHCP snooping is a series of techniques applied to improve the security of a DHCP infrastructure. [1]DHCP servers allocate IP addresses to clients on a LAN.