[Cisco] 一個簡單的LAN的基本設定流程

Beforehand
1. Set all the hostname
2. Privileged mode password
3. Global configuration mode password
4. Turn on telnet

Router Setting
1. Let the port which connected with switch be up-up
2. Set serial-to-serial clock rate. Make them up-up

VLAN Setting (if it's necessary)
1. Set ip and gateway of switch on vlan 1
2. Cisco Router Trunk Setting
3. Cisco Switch Trunk Setting
4. Create vlan
5. Assign vlan to ports
6. Save the configuration

Chose the routing protocol
   RIP Routing Protocol (version 2)
   OSPF Routing Protocol

以上只是講個概念  一個網路是怎麼從第一層設定到第三層
最後到成功可以Routing

[Linux] Wireshark tarball for openSuSE

First, go to the wireshark's web.  
http://www.wireshark.org/download.html
Click the hyperlink named Source Code to download Wireshark.tar.bz

# tar -jxvf wireshark.x.x.x.tar.bz -C /root
# cd wireshark.x.x.x

If you want to read more information about the wireshark installation
You can
# less INSTALL  or # less README

# ./configure
# make
# make install

To start wireshark
# wireshark

If it didn't work, please check for the path of lib

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For openSuSE 11.2 here is some solutions to make it work
First, you have to remake the libpcap.
Because there is no pcap.h in the lib.
Then, you have to check for libpcap version.
Go to the website and download the tarball
http://www.tcpdump.org/

# tar -zxvf libpcap.x.x.x.tar.gz -C /root
# cd libpcap.x.x.x
# ./configure
# ./make
# ./make install

# cd wireshark.x.x.x
# ./configure
# ./make
# ./make install

After starting wireshark, you will get a message like "libwiretap.so.0, No file or Directory".
It means there is no libwiretap.so.0 in your lib.
But you can use command "locate" to find the file.

Then make sure your lib
# cp -aR /usr/local/lib/* /usr/lib/

Down