vpn routing and forwarding

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Network-packets in the Routing and forwarding process MAC address and IP address, change and constant

data frame, and then check the MAC Address table to get out of the corresponding interface.IP address is effective throughout the network, the entire Internet network is the equivalent of a large map, also know how to get all the IP address, then in the transmission of the source IP and destination IP will not change. When the router receives the packet, check the destination IP address of the packet, then look for the routing table (

Summary of configuration formats of dynamic routing (ripV2, ospf, VPN, bgp, IS-IS)

Summary of configuration formats of dynamic routing (ripV2, ospf, VPN, bgp, IS-IS)1. r12002router rip enable rip Protocol no atuo-summary disable automatic summary of version 2 2 network x mask x declaring the network segment (the subnet mask is a positive mask, mask can be disabled. 2. Enable the ospf protocol for ospfrouter ospf x, and add the Process Code router-id x to specify the router-id (the address

Cisco enhanced Internal Gateway Routing Protocol (VPN)

Enhanced Internal Gateway Routing Protocol (OSPF) Router (config) # router VPN 100 Router (config-router) # network 192.168.1.0 0.0.255 Router (config) # key chain 2800 Router (config-keychain-key) # key 1 Router (config-keychain-key) # key-string cisco Router (config-keychain-key) # exit Router (config-if) # ip authentication mode Kerberos 100 md5 Router (config-if) # ip authentication key-chain gl

IP datagram routing (IP group forwarding)

IP datagram routing (IP packet forwarding process) Answer: The grouping forwarding algorithm is as follows: (1) extract the IP address D of the target host from the datagram header and obtain that the destination network address is N. (2) If N is a network address directly connected to this vro, it will be delivered directly. Instead of going through other vroute

Phpbean Routing-forwarding PHP code _php template

First step: Getting Started How do I use Phpbean to route forwarding? Here is a simple example of use. First of all, index.php is a simple introduction to the program, the main route forwarding work. Index.php's program code is as follows: ? Include (' startup.php ');/load Boot file try{ $router =new phpbean_router ();//Initialize Router $router->set_path (site_path. ') /app/actions ');//Set the controller

Xubuntu for routing forwarding

1. First need two network card (wireless network card and wired network card can be), take this machine as an example: Wireless network card (WLAN0), wired network card (eth0) Set Wlan0 DHCP dynamically acquire Ip,eth0 static IP 192.168.6.1 2. Network cable A connection between the eth0 and the router Wan port (of course, the router also set static IP, set to 192.168.6.3) 3. If you need to enable your PC to forward IP packets, the Linux system itself has the function of IP packet

Analysis of hardware Routing and forwarding principle-morning supplement

Because it was so sleepy last night, the eyes were spent explaining the problem and the brain was short-circuited. When I woke up in the morning and found that my family were still sleeping, I wanted to continue to tell you that I didn't say anything exciting last night.My explanation diagram gives me a schematic of my hardware forwarding again:Note that there is no optimization, you can try to use some small tricks to further optimize it, or you can

The experiment of Routing and forwarding configuration in Win7

number through the route print. As configuredDo not add any commands in PC2, but turn on the forwarding function.Add in PC3Route Add 192.168.2.0 Mask 255.255.255.0 192.168.1.78 if 10Experimental resultsPing 192.168.2.3 from PC3 can ping successfully.From Pc1ping 192.168.1.56 can also be successful.Analysis resultsPC3See the result of PC3 PING PC1 from above. But the target IP address is 192.168.2.3, and the target Mac is 00:21:5d:f3:72:22 (this Mac i

Routing and forwarding configuration for multiple network cards under CENTOS7

-interface=ens1--zone=internalInput Firewall-cmd--change-interface=ens3--zone=internalThe ens1 and ENS3 are configured as an intranet interface, but this is only temporary configuration, but also need to be added to permanently modify the intranet interface LAN, as when setting up an extranetInput Firewall-cmd--change-interface=ens1--zone=internal--permanentInput Firewall-cmd--change-interface=ens1--zone=internal--permanentAt this time ens1 and ENS3 will be configured as a permanent intranet, in

Easy to use Linux to turn on routing and forwarding functions.

Mark, today want to let a REDHAT7 open iptables NAT forwarding function, find a half day.A server: 192.168.30.20/24b Server: 192.168.30.1/24,eth0; 192.168.40.1/24,eth1C Server: 192.168.40.20/24Goal: Allow A to ping and ssh to the C machine. This will need to jump through the B server.Operation Process:1. Turn on the kernel route forwarding parameter on the B serverTemporary entry into force:echo "1" >/proc/

Introduction to Linux Routing and forwarding

0eth0169.254.0.00.0.0.0 255.255.0.0U1002 00eth0LINUX03:[[emailprotected]~]#traceroute-n10.0.0.10tracerouteto10.0.0.10 (10.0.0.10),30hopsmax,60bytepackets110.0.1.11 3.137ms3.056ms3.000ms210.0.0.10 4.003ms3.981ms3.948m[[emailprotected]~]#route -nKernelIProutingtableDestinationGateway genmaskflags MetricRefUseIface10.0.0.0 10.0.1.11255.255.255.0UG 000 eth010.0.1.00.0.0.0255.255.255.0 U00 0eth0169.254.0.00.0.0.0 255.255.0.0U1002 00eth0This article is from the "wind and Rain Forest" blog, please mak

Datagram Forwarding (Multi-network routing)

reach the destination IP address, and the DESC may not necessarily reach the destination.It can only be reached after numerous forwarding The following describes how to forward data in multiple networks. Case:Lan1PC1 IP: 192.168.1.2 Mac: 000b. be06.4ac1 Router1Interface 1: IP: 192.168.1.1 Mac: 000b. be36.8d86 (connect LAN lan1)Interface 2: IP Address: 192.168.12.1 (connect to lan2) Lan2PC2 IP: 192.168.3.2 MACOs: 0001. c934.e830Router2Interface 1: IP

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