Model: Cisco IOS software, 3800 software (c3845-adventerprisek9-m), Version 15.1 (4) M4, RELEASE Software (FC1)Ios:c3845-adventerprisek9-mz.151-4.m4.binSymptom: Write a command such as ' IP host www.test.com 192.168.100.9 ' save, 5 minutes or so
Data packet transmission from the host to the host
1/22
SYN is the signal for TCP connection establishment.
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This paper introduces the method of obtaining the route table of host in IP protocol:
Host Initialization routing table:
Direct-connected routing: Automatically obtains routing information for direct-attached hosts and networks when
*********************************************** Declaration ********************************************* * original works, from the "Deep Blue Blog" blog, Welcome Reprint, please be sure to indicate the source when reproduced , otherwise be held
Route # configtEnterconfigurationcommands, oneperline. endwithCNTLZ. route (config) # intfa01route (config-if) # ipaccess-group112in then, in this group, write the host address that allows Internet access (the configuration should be configured
Route # configtEnterconfigurationcommands, oneperline. endwithCNTLZ. route (config) # intfa01route (config-if) # ipaccess-group112in then, in this group, write the host address that allows Internet access (the configuration should be configured
As a Linux SA, many parts of the day-to-day operation of the script, and the server's IP is generally static IP or Mac binding, of course, the latter comparison is relatively cumbersome, and the former we can set the host name, IP information,
Today, I encountered a very interesting topic, recursive routing. Although gre over ipsec is configured, the routing interface is down back and forth,
* Mar 4 15:08:34. 435: % OSPF-5-ADJCHG: Process 10, Nbr 4.4.4.4 on Tunnel0 from LOADING to FULL,
(1) effects:
IP Access-list extended to-Internet
Permit IP host 10.63..1 .1 any
Permit IP host 10.63..2 .2 any
Permit IP host 10.128.16.1 any
Permit IP host 10.128.16.2 any
Analysis:
The displayed result indicates that the vro has created an
I. Introduction:
Currently, IP has become the routing protocol for most backbone network products. In some network environments, users have high requirements on the network, and any shutdown and storage and transportation losses will have a serious
With the development of information technology, the requirements for office networks are also changing. Our office network must meet three requirements,1. Establish the company's internal Web server, E-mail server, and office automation server to
With the development of information technology, the requirements of the office network are also changing. My company's office network to meet the requirements of three aspects, 1, the establishment of the company's internal Web server, e-mail server,
TCP/IP protocol stack
This section briefly introduces the internal structure of TCP/IP and lays the foundation for discussing Internet-related security issues. TCP/IP protocol groups are popular in part because they can be used on a variety of
1. Use Qos to limit the upload speed
Step 1. Define the host range for which you want to limit the speedS3760> enS3760 # confS3760 (config) # access-list 101 permit ip host 192.168.1.101 any
---- Define the IP address for Speed LimitS3760 (config) #
You only need a CISCO router with an asynchronous module or a vro with a built-in asynchronous serial port to fully enjoy the control connection to a series of network devices in a work room or data center. Now let's take a look at how these jobs
1. Introduction
IP multicast transfers data to some hosts. One or more hosts are represented by one IP address. Multicast transfers data to all hosts in the best way like normal IP Address Transmission. The group members are dynamic. Members can
Version: 2.6.9Tcpdump TCP port 23 host 200.201.202.15 cannot be used. It is a syntax error.
[Root @ localhost ~] # Tcpdump TCP host 200.201.202.15Tcpdump: 'tcp 'modifier applied to host
For TCP/UDP protocol, only the port number can be monitored,
Implementation of VPN on a Cisco router: 1. software requirements: IOS with performaniseplusistmc56 is required. Currently, stable versions are 12.07T2. Hardware requirements: 8 mbflashand40mbram in DownloadIOS, the software and hardware
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