<div>
<div class="content wysiwyg-content">
<a href="https://www.experts-exchange.com/questions/28368149/Cisco.html" rel="ugc">Below question realted to following link also</a><br />
<br />
After i used following command<br />
user Homer privilege 3 password Simpson<br />
privilege exec level 3 copy running-config tftp <br />
<br />
Error<br />
ISO ver 15.1(r8)T<br />
&nbsp;copy run tftp<br />
&nbsp;%Error opening nvram:/startup-config (Permission denied)
</div>
</div>


Below question realted to following link also (https://www.experts-exchange.com/questions/28368149/Cisco.html)

After i used following command
user Homer privilege 3 password Simpson
privilege exec level 3 copy running-config tftp 

Error
ISO ver 15.1(r8)T
 copy run tftp
 %Error opening nvram:/startup-config (Permission denied)

Cisco

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.

Networking Protocols

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.