cisco 2811 router

RGMP is designed to be used in combination with the multicast routing selection protocol that supports the distribution tree Join/Prune. The typical protocol is PIM-SM. The RGMP protocol only specifies the IPv4 multicast route selection operation, excluding IPv6. The Cisco router port Group Management Protocol makes up for the shortcomings of the Internet group management protocol in the snoopIng technical

RGMP: Cisco router port group management protocol (rgmp) makes up for the Internet group management protocol (Igmp: Internet group management protocol) problems in snoopIng technical mechanisms. The rgmp protocol acts between multicast routers and switches. Rgmp allows you to fix multicast data packets forwarded by vswitches in the required vro. Rgmp is designed for backbone swItched networks, which is conn

for Cisco's enterprise-class routers and switch products, regular debugging, familiar with the operation of the product principles and business processes. This will be easy to deal with when you encounter the Internet and data failure. The following small series to you recommend the router debugging simple steps: 1. Use the Cisco router Debug cable to connect th

principle, using a Udpecho request instead of a ICMPECHO request to initiate an attack. While cyber security experts are focused on developing devices that block Dos attacks, they have little effect because Dos attacks exploit the weaknesses of the TCP protocol itself. Properly configured routers can effectively prevent Dos attacks. In Cisco routers, for example, the iOS software in Cisco routers has many

The user checks network security and requires SSH logon to the core device. Previously, the device used Telnet logon, and the user name and password are transmitted in plaintext, which does not meet the security check requirements. In fact, the SSH login configuration is very simple, mainly divided into the following steps: 1. Configure the Domain Name Sd_core_r7600 (config) # IP domain-name sdcore 2. generate an SSH key Sd_core_r7600 (config) # crypto key generate RSA The name for the keys will

Tag: Register BRE router exists reload conf device star RAMClear the password for the Cisco 1841 router:(1) The console line connects the computer and the router console port, through the terminal client connection, the router is powered on (if the device is started, press t

Simply record that a Cisco router is simulated as a frame relay switch, and the router must have a serial interface module. Liehuo.net // Enable Frame Relay switching on the vroFRSW (config) # frame-relay switching strong-fire-network // Enter the Interface Configuration ModeFRSW (config) # int serial 0/1 Veryhuo.com // Delete the interface IP AddressFRSW (

A Cisco router is a commonly used network device. But what is the storage type of a vro? We will give you a detailed introduction through this article, and hope to have a deeper understanding of Cisco routers after reading this article.Memory category:1: RAM: Random Access to memory, equivalent to computer memory2: ROM: read-only memory. Some microcodes used to s

timeout and SSH Authentication-retries to minimum numberEnable only SSH and SCP for access and file transfer to/from the router6. Protect forwarding planeEnables Cisco Express Forwarding (CEF) or distributed CEF on the router, when availableAnti-SpoofingBlocks all IANA reserved IP address blocksBlocks private address blocks if customer desiresInstalla default route to null 0, if a default route is not bein

When I got up this morning to go to the forum, I saw a post. Ask how to solve the following problem? A Cisco three-tier switch divides 3 VLANsVLAN 2:IP 192.168.1.1 255.255.255.0 192.168.1.254 Network SegmentVLAN 3:IP 192.168.2.1 255.255.255.0 192.168.2.254VLAN 4 IP 192.168.3.1 255.255.255.0 192.168.3.254Each VLAN can communicate with each other.Now add 1 Cisco routes to achieve shared Internet accessCisco

The following describes how to connect to a Cisco 2500 series router. In this section, assume that the router to be connected has received a basic configuration.Figure 1-6 shows the connection work that needs to be done after 2 5 0 1. Each vro has a console connection toolbox, including a Black r j-4 5 cable and a set of connectors. To connect to A Wy s e or othe

) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/5B/73/wKioL1UJZYfD7nZfAAJQqlhdmlc625.jpg "title=" 3.PNG " alt= "Wkiol1ujzyfd7nzfaajqqlhdmlc625.jpg"/>rouer#ping 192.168.1.1 Ping Server IP address for single-segment testing650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/5B/79/wKiom1UJZKmCXDFuAAKqVUpIxUY219.jpg "title=" 4.PNG " alt= "Wkiom1ujzkmcxdfuaakqvupixuy219.jpg"/>Router#copy Running-config TFTP650) this.width=650; "src=" http://

not encrypted during network transmission, strict control is required. For example, set a strong password, control the number of concurrent connections, strictly control the access address using the access list, and set user access control using AAA.8. We recommend that you use FTP instead of TFTP for iOS upgrade and backup and configuration file backup. For example:Router (config) # ip ftp Username blushinRouter (config) # ip ftp password 4tppa55w0rdRouter # copy startup-config ftp:9. Upgrade

The features of Cisco Wireless routers have previously been introduced to you. Today, we are trying to better understand the source of the vulnerabilities and the inner relationship between the vulnerabilities and functions. Recently, it was found that Cisco Wireless Router allows hackers to easily access the network configuration page of the

Password Recovery principle of the Cisco router-the Cisco router stores several different configuration parameters and stores them in different memory modules. The introduction is as follows: ---- · internal memory type ---- Cisco2500 series routers have five types of memory: ROM, flash memory, immutable RAM, and share

The CISCO router performs a bridge on the instance router # sh ru Building configuration... www.2cto.com Current configuration :! Version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption! Hostname router! Enable secret 5 $1 $ BE0q $ hj. WBtIBYppMX3zyfaPbR1!!!!! Memory-si

://s3.51cto.com/wyfs02/M01/5B/98/wKiom1UNHE_jd_NWAAMEKi3zMRY964.jpg "width=" 536 "height=" 351 "alt=" Wkiom1unhe_jd_nwaameki3zmry964.jpg "/>3. Backing up the configuration fileConfiguration command:Router (config-if) #ip address 192.168.1.2 255.255.255.0! Set the interface IP addressRouter#write memory! Save Running-config to Startup-configRouter#copy Running-config TFTP Save addressAddress or name of remote []?192.168.1.1 saved host IPDestination filename [