juniper software defined secure network

In Interop 2012 in Las Vegas, I asked HP two questions: what is the current situation of HP OpenFlow and software-defined network strategy? What is the progress of the HP 12500 Series Data Center rack switch? Fortunately, at the end of the meeting, I had the opportunity to communicate with Mike Nielsen, HP Network Solu

separate from the forwarding plane. The control plane can be executed on a server with higher computing power, rather than a router. Openflow is a separate communication protocol between the two. For the technical details of openflow, the article "Reverse Attack of Virtualization: openflow and SDN" briefly introduces openflow. Based on the programmable features brought by openflow to the Network, some researchers proposed SDN (

In recent weeks, with the activation of the Open Networking Foundation (ONF) and the announcement of support for almost all mainstream network providers, the OpenFlow specification broke out in the network field. In fact, the OpenFlow switch has been published on Interop Las Vegas 2011 and has aroused great controversy. SDN allows network engineers to control and

The entire concept of Software Defined Network (SDN) is about abstracting hardware to enable new types of network streams. Although many early discussions on SDN are concentrated on routers and switches, SDN does not stop here. SDN has many functions, including helping WCO and application delivery controller (ADC) busi

-eth0 s1-eth2:h2-eth0c0--macMininer is created by default to every device (Host,switch, etc.). ) assigns a MAC address, but each time the assigned Mac location changes, and the adjustment is more difficult. --macis to keep your Mac location simple and understandable.Not yet tuned:mininet> h1 ifconfig | grep HWaddrh1-eth0 Link encap:Ethernet Join--macmininet> h1 ifconfig | grep HWaddrh1-eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:01Terminal to open individual hostsxtermmn -xThe terminal

Although OpenFlow and Software Defined network SDN are mainly about data centers or carrier networks, this technology may be more useful for campus networks, especially for the improvement and improvement of BYOD built-in devices) security and Management. Matt Davy, Chief network architect at Indiana University, believ

192.168.10.1 to TARGET1---> mean to deceive 192.168.10.1 I'm 192.168.10.2Set 192.168.10.2 to TARGET2---> mean to deceive 192.168.10.2 I'm 192.168.10.1Select ARP attackPress OKJust press OK in the instant, will find H1--->H2 message has been h4 monitoring!!!!We can verify if it's ARP poisoning.主机名 arp -nAs you can see, although different IPs, but have the same MAC Address!!!Attention!! So how do you prevent ARP attacks? ANS: Set the static ARPWhen we manually set up the ARP, H4 will not be able

Mininet-4In our last blog, we added a new H4 and opened the hub functions0.cmd("brctl setageing br0 0")#!/usr/bin/env pythonfrom mininet.cli Import clifrom mininet.net import mininetfrom mininet.link import Link,TCLinkif ' __ main__ ' = = __name__: Net = mininet (link=tclink) h1 = Net.addhost (' H1 ', ip= "192.168.10.1/24", mac= "00:00:00:00:00:01") H2 = Net.addhost (' H2 ', ip= "192.168.10.2/24", mac= "00:00:00:00:00:02") h3 = Net.addhost (' h3 ', ip= "192.168.20.1/24", mac= " 00:00:00:00:00:03

") h3.cmd (" IP rout E add default via 192.168.20.254 dev H3-eth0 ") s0.cmd (" Brctl addbr br0 ") s0.cmd (" Brctl addif br0 s0-eth0 ") s0.cmd (" Brctl A Ddif br0 s0-eth1 ") s0.cmd (" Brctl addif br0S0-eth2 ") s0.cmd (" Ifconfig br0 Up ") CLI (NET) net.stop () Reminders echo 1 gt; /proc/sys/net/ipv4/ip_forwardStart the routing feature ip rotue add default via 192.168.10.254 dev h2-eth0Setting up a default router Execution resultsxterm s0Open the switch to see the br0 set aboveM

Mask:255.0.0.0 inet6 addr: fe80::e406:6dff:fe77:e4c5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:59 errors:0 dropped:0 overruns:0 frame:0 TX packets:31 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:5911 (5.9 KB) TX bytes:2630 (2.6 KB)lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK