hdlc

router. The LR-2501 router has 1 10 m lan (LAN) Port, 2 WAN ports and 1 Console port. Therefore, the features of the backup line are met in this scenario. Wan interfaces support Frame Relay, X.25, PPP, HDLC, and other Wan protocols, provide transmission rates up to T1/E1, and provide network address translation (NAT) functions. Supports PAD (X.3, X.28, and X.29) protocols and provides password protection. Based on this network application scenario, y

precisely adjust their existing router security configurations to better meet their enterprise needs. Cisco SDM can also be used for routine operations, such as monitoring, fault management, and troubleshooting. Router Security Configuration In addition to vro security configuration, Cisco SDM can also help you quickly and easily perform vro service configuration, for example: lan wlan, WLAN and WAN interface configuration, dynamic routing, DHCP server, QoS policy, and so on. By using the LAN C

network port (HDLC and PPP protocols are used in the experiment respectively ). Finally, you need to configure the routing protocol. In a large network, there are many different protocols (Static Routing, dynamic OSPF, and VPN) available ). However, we chose CISCO's proprietary dynamic routing protocol (PDUS. 3. user terminal settings For the convenience of the experiment, we have only placed a Microcomputer In the Ethernet to connect to the Ethernet

network port (HDLC and PPP protocols are used in the experiment respectively ). Finally, you need to configure the routing protocol. In a large network, there are many different protocols (Static Routing, dynamic OSPF, and VPN) available ). However, we chose CISCO's proprietary dynamic routing protocol (PDUS. 3. user terminal settings For the convenience of the experiment, we have only placed a Microcomputer In the Ethernet to connect to the Etherne

the leased line on the dial-up line to ensure high-reliability network requirements. According to the requirements of this scenario, you can also choose Lenovo's LR-2501 router. The LR-2501 router has 1 10 m lan access WAN (LAN) Port, 2 WAN (WAN) port and 1 Console port. Therefore, the features of the backup line are met in this scenario. Wan interfaces support Frame Relay, X.25, PPP, HDLC, and other Wan protocols, provide transmission rates up to T1

connections, so that the provider's server can respond to your requests, receive and send your requests to the network, and then send the responses to the network. PPP is a member of the TCP/IP protocol family. The PPP protocol can be used for full duplex protocols for different media, including twisted pair wires, optical fiber cables, and satellite transmission. It uses HDLC for package loading. The PPP protocol can both process synchronous communi

sending them over the network, or receiving physical frames from the network, extracting IP data packets, and handing them over to the IP layer. Www.2cto.com common interface layer protocols include Ethernet 802.3, Token Ring 802.5, X.25, Frame relay, HDLC, and ppp atm. The network layer is responsible for communication between adjacent computers. Its functions include three aspects. 1. process the packet sending request from the transport layer. Aft

same group, the core network device only needs to exchange one group and only needs to consume the resources forwarded by one group. Therefore, telecom operators can use the cell packaging technology to save core network group forwarding resources. Cell relay also reduces bandwidth utilization. For example, assume that a telecom operator wants to transmit a cell to relay an ATM Cell stream on a Multi-Protocol Label exchange MPLS core that includes the packet-over-SONETPOS interface. On the edge

CHAP CHAP has high requirements on the end system because it requires multiple identity questions and responses. This requires a lot of CPU resources, so it is only used in scenarios with high security requirements. 3. CHAP Configuration Basic PPP Configuration For synchronous serial interfaces, the default Encapsulation Format is HDLCCisco private implementation ). You can use the encapsulation ppp command to change the encapsulation Format to PPP.2. Figure 2 PPP serial Encapsulation When eit

There are many topics to explain about the PPP protocol. This protocol is also widely used. Here we will focus on the content of LCP. First, let's take a look at the specific architecture of the ppp protocol. I. Overview 1. It is a layer-2 protocol with the same status as HDLC and RARP. 2. PPP architecture: (1) supports multiple upper-layer protocols, such as IP, IPX, and AppleTalk. (2) It includes two Protocols: Network Control Protocol (NCP) an

We have heard of point-to-point protocols, that is, PPP protocols, during our learning of network protocols. What are the characteristics of this protocol? Here we will take a look at the PPP protocol and the PPP status. PPP is a data link layer protocol that complies with the HDLC Advanced Data Link Control Protocol. PPP is designed to transmit network layer packets in the OSI model over point-to-point physical links (for example, RS232 serial port l

prevent the generation of the routing ring. Default route Configuration The default route is also a static route. Simply put, the default route is used only when no matching route entries are found. That is, the default route is used only when no suitable route exists. [Router] ip route-static 0.0.0.0 0.0.0.0 Serial 0 preference 60 Summary: The above command uses Serial 0, the interface name, such as Serial port encapsulation of PPP or HDLC prot

gives the customer the initiative to establish a tunnel, but the customer needs to configure PPTP on its PC. This will increase the user's workload and cause network security risks. In addition, PPTP only works on IP addresses and does not have the function of verifying the tunnel endpoint. It depends on user verification. L2F/L2TP protocol: The L2F (Layer 2 Forwarding) protocol is proposed by Cisco to establish a multi-protocol secure VPN communication mode on a variety of media (such as ATM,

packets encrypted by WPA/WPA2 and other protocols;(6) Data packets from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, Token Ring and FDDI (optical fiber) can be acquired in real time;(7) Support to read and analyze the file formats saved by many other network sniffer software, including Tcpdump, Sniffer Pro, Etherpeek, Microsoft Network Monitor and Cisco Secure IDS and other software;(8) Support to capture by various filtering conditions, support

The configuration steps of the PPP experiment on the GAR router are the same as that of R2. The following uses R1 as an example. R1> enable // Enter enablePassword in user mode: // Enter the password zteR1 # R1 # config t Enter configuration commands, one per line. end with CTRL/Z. r1 (config) # R1 (config) # controller ce1_2/3 // enter the ce1 configuration mode R1 (config-control) # channel-group 1 timeslots 1-31 // configure the time slot R1 (config-control) # framing frame // configure the f

= 169 REMNAME = 169. # Init /Sbin/isdnctrl verbose 3 #/Sbin/isdnlog-sS-v1-m0x17d7-l0x3d7-C/dev/console-D/dev/isdnctrl # Add and set ippp0 /Sbin/isdnctrl system on /Sbin/isdnctrl addif ippp0 /Sbin/isdnctrl eaz ippp0 $ MYMSN /Sbin/isdnctrl addphone ippp0 out $ REMMSN /Sbin/isdnctrl huptimeout ippp0 3600 /Sbin/isdnctrl l2_prot ippp0 hdlc /Sbin/isdnctrl l3_prot ippp0 trans /Sbin/isdnctrl encap ippp0 syncppp /Sbin/isdnctrl dialmode ippp0 auto

The software system is based on a VRP software platform with proprietary intellectual property rights of Huawei. It supports multiple VPN methods (L2TP, GRE, mpls vpn, etc.) and provides a wide range of NAT functions, provides multiple interconnection functions, including Ethernet/VLAN, PPP/MP, PPPoE, Frame Relay, HDLC, ATM, X.25, and LAPB. Route processing capability Supports enterprise-level router protocols such as RIP, OSPF, BGP, and IS-IS, as we

Model 2 indicates that router R1 is connected to a router R2 through a point-to-point link (such as PPP and HDLC); abstract Model 3 indicates that router R1 is connected to multiple points through a point-to-point (such as Frame Relay and X.25) links are connected to multiple routers such as R3 and R4. At this time, routers R5 and R6 are not interconnected. The abstract Model 4 indicates that routers R1 Use point-to-point (such as Frame Relay and X.2

control. Therefore, here we will briefly introduce several steps to implement the original functions. First, enter the port mode to give each wide area network port and Ethernet port an IP address and the corresponding Address Mask. Secondly, we need to set the link transmission encapsulation protocol for bandwidth and data at the wide area network port (HDLC and PPP protocols are used in the experiment respectively ). Finally, you need to configure

: Atm-dxi/frame-relay/hdlc/lapb/ppp/smds/x25 Encapsulation frame-relay ietf This is because the frame relay network is used, so it is called the sub-assembly Frame Relay (Standard ietf format) The carrier's port is DCE because it can control the number rate and the device's port DTE; therefore, you must set its type. (In fact, there is also a kind of nni called network-to-Network Interface) Frame-relay intf-type dce Set the port channel type Clock rat