Ethernet tunnel technologies such as provider backbone transport (PBT) and Transport MPLS (T-MPLS) are generating a great deal of interest. tunnel technologies aim to enable "connection-oriented" Ethernet transport with high levels of reliability, manageability and scalability.
Note that PBT has been given a new name by the ieee in the project authorization, and we'll use the new name: provider backbone bri
I have been using chromebook for some time. At first I felt a little disappointed. Later I found that I could use the test channel to update the test version. The new test version has improved the performance and availability.
Flash supports hardware acceleration, and video playback smoothness is basically acceptable (high bit rate or some frame drop). It is also convenient to watch movies/American dramas when used with the help of offline downloading and online playback of the arms;
Webpage
Experiment topology:
R1 configuration:
R2 configuration:
R3 configuration:
Verify:
From the BGP general rule 1.1.1.0/24 's next hop should be R2 (123.1.1.2) but it has automatically changed to R1 123.1.1.1. This is the third party's next jump. This is a change in the control level.
Route redirection is a change in the forwarding of the data plane, and the next hop does not change. (Refer to My route redirection experiment)
This arti
is restored, the restored data packets are forwarded to the corresponding server.
Http://www.http-tunnel.com/is an on-line tunnel server for professional HTTP Channel services. users in the LAN can use the ICQ, e-mail, PC Anywhere, MSN, QQ, Napster and other software blocked by the firewall.
First,The HTTP-tunnel server must use the http-tunnel client.Progra
Recently debug public number function, do not want to submit to the server every time to read the log
So on the server with the Nginx reverse proxy to the server 80 port received the request forwarded to the 127.0.0.1:9000
Then using SSH to tunnel the server 9000 port mapped to my local development machine 80
SSH Tunnel Reference http://my.oschina.net/magicly007/blog/480706
Assume server external domain na
Creating an IP tunnel using GRE on Linux
Contents [Hide]· 1 IP tunelling· 2 Starting Configuration· 3 tunnelling ObjectiveO 3.1 Create TunnelsO 3.2 Additional RoutesO 3.3 Delete Tunnels· 4 Network DiagramO 4.1 Debian Configuration· 5 References
IP tunellingWe'll do IPv4 tunneling using GRE. GRE is a tunneling protocol this was originally developed by Cisco, and it can do a few more things than Ip-in-ip Tunnelin G. For examp
Address: Use IP tunnel to open up private network requirements
There are 2 isolated networks, and the topology is shown in the diagram below. ServerA want direct access to the private network of the ServerB connection
|
1.1.1.1 2.2.2.2 |
+---------+ public +---------+ | Private
| ServerA +-----------+ ServerB +-----+
+--------
[Experimental environment] veryhuo.com
C3640-IK9O3S-M Version 12.4 (10) veryhuo.com
[Tutorial Objective] Lie's Fire Network
The tunnel technology is used to expand the frame relay switch simulated by the router to make up for the insufficient frame relay interface caused by limited router interfaces. Lie-fire-network
[Experiment topology]
Liehuo.net
Veryhuo.com
[Experiment description] liehuo.net
In the experimental environment, because frame relay
return a response or response data to the server, and the server will forward it to the client. Servers and gateways are independent applications, so their responsibilities are clearly divided. This simple protocol (input request, transfer, and response) is the oldest and most commonly used Server Extension Interface CGI.
6. cgi applications are independent of servers, so they can be used in almost any language in advance. CGI processing is invisible to users. The client does not know the trans
This article attempts to describe what a VPN tunnel is in simple language and explains how VPN provides strong anonymous and privacy protection.
The operation performed by the VPN tunnel is called Data encapsulation. To understand what encapsulation is, let's make a simple analogy. If you are a political refugee living in another country, the secret of your place of residence is crucial to your personal saf
. Modprobe IPv6 again. Execution successful. The server already has an IPv6 address.
12.the operation log is on the Windows table, and ipv 6.txt is started"
13. Move to my documents> documents.
14. Establish a tunnel connection for the two machines
15. The ideas are summarized as follows:
① Specify the IPv6 address for the two machines.
② Enable tunnel on two machines, ifconfig sit0 up
③ Direc
1. First, load the kernel module ip_gre.o. the GRE module in the previous versions of kernal is ip_gre.o, and RHEL5 is called ip_gre.ko.
Modprobe-l | grep ip_gre.ko
The above command is to look at this module
Insmode/lib/modules/2.4.20-8/kernel/net/ipv4/ip_gre.ko
The above command loads the ip_gre.ko module.
Note that you need to load it again after each restart or logout.
2. Start the GRE Tunnel
Ip tunnel
Tags: SSH tunnel encrypted WiresharkUse the "SSH to build up" the tunnel access to other computer can make the communication encrypted and secured, tested on th E HTTP service by using the SSH tunnel access,1, use the Wireshark to capture the data without the SSH tunnel, host as 192.168.0.103, remote server as 192.168.
Test the OpenVPN encrypted tunnel on a single machine and solve the problem
In fact, the relationship between this article and OpenVPN is not very large, but the problems exposed during the OpenVPN test. This article contains many details about IP routing and conntrack.
Sometimes, to save on the machine, I want to simulate multiple devices on one device. Of course, you can use the network namespace, but my kernel version does not support it... so I wa
Article Title: Configure ipip and gre tunnels in Linux. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open-source, and other basic categories.
Create a ifcfg-tunl1 file under/etc/sysconfig/network-scripts
The content is as follows:
DEVICE = tunl1
TYPE = IPIP
PEER_OUTER_IPADDR = 219.216.98.110
MY_INNER_IPADDR = 10.0.1.1/24
Configuring the gre
I just discussed it with the two heroes in the group. I will summarize it and share it with you.
Now there is an intranet machine S6 and an Internet machine S7. We need to connect from S6 back to S7.
Run
Ssh-R 4022: localhost: 22 s7
At this time, the system will log in to S7, and a 4022 tunnel port will be opened locally in S7 to access IPv6.
Then execute ssh localhost-p 4022 in S7 and connect to IPv6.
Of course, you can also make a socks5 proxy to tr
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