WebMux WM108E User Manual

Summary of WM108E

  • Page 1

    I table of contents table of contents ················································································································ i packing list······················································································································· iii main compon...

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    Ii modify server ·····························································································································43 initial setup change through browser ····················································································45 initial configuration worksheet...

  • Page 3: Packing List

    Iii packing list • one (1) webmux unit • one (1) power cord • one (1) user manual • one (1) warranty registration card.

  • Page 4: Main Components

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 1 main components front view toggle power switch this switch toggles power on and off. To power off, the switch must be pressed and held for 5 seconds. Reset button press and release the reset but...

  • Page 5

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 2 rear view server lan port connect this port to the server lan switch or hub. This port connects to the servers and your local computers. It is the right most rj45 socket. In out-of path configur...

  • Page 6: Webmux Overview

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 3 webmux overview key features the webmux is a standalone network appliance designed primarily to load balance ip traffic to multiple servers. The webmux includes the following key features. • imp...

  • Page 7

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 4 • built-in firewall protections. Stop possible hacker intrusion into your network from internet. All ip addresses and ports are blocked except the farm ip address. Built-in functions will detect...

  • Page 8

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 5 the webmux family the 1u webmux family consists of two models. They are: • the webmux • the webmux pro the table below compares the features of the models. Webmux webmux pro topologies: ethernet...

  • Page 9

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 6 management: secure web browser access yes yes in service/not in service yes yes page alarms yes yes email notification yes yes configuration access yes yes remote telnet access yes yes persisten...

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    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 7 network overview the webmux has two modes, in-path, or nat (network address translation) and out-of-path (direct routing) mode. Each mode has its advantage and disadvantages. Lets look the nat m...

  • Page 11

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 8 • first, server 1 and server 2 would each need the website www.Cainetworks.Com configured on them and http/https services started, and • second, a farm on the webmux is defined with server 1 and...

  • Page 12: Sample Configurations

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 9 sample configurations single webmux • this installation requires one webmux. • one webmux interface connects to the router lan. The other interface connects to the server lan..

  • Page 13

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 10 • the webmux translates the internet addresses to an internal non-routable class-c address. In this example, the netmask is 255.555.255.0. The ip address of the webmux interface attached to the...

  • Page 14

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 11 redundant installation • the installation requires two webmuxes. One will be the primary, and the other the secondary. They connect together with the ethernet cable that is either cross-over or...

  • Page 15

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 12 • the registered internet ip address range is a class c address range. The ip address of the webmuxes’ virtual farms must be in the same network range as the internet router. • the webmux trans...

  • Page 16

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 13 installation without ip address change out-of-path mode: the above diagram is an example about how to configure the webmux in out-of- path mode without changing the ip addresses of the web serv...

  • Page 17

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 14 out-of-path mode also allows two webmuxes to fully backup each other. Two webmuxes connected to each other through a cross-over ethernet cable. Two simple changes must be made to each server in...

  • Page 18

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 15 configuring the webmux before you start please collect the information about names and ip addresses designated by the arrows in the network topology below. Network terminology a virtual farm in...

  • Page 19

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 16 to serve the internet, there must be at least one internet router. This local area network that connects the router and the webmux is called the router lan . In this lan, the webmux takes the i...

  • Page 20: Initial Configuration

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 17 • power up all devices in the network. • verify that all the devices are up and running. • you are now ready to configure webmux. Hardware setup ---configuration summary caution: do not proceed...

  • Page 21

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 18 quickly: if you hold down the up/down button for more than a second, the letter will start changing quickly.) note the left most down arrow on the lcd allowing user to skip certain entries. Ent...

  • Page 22

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 19 enter router lan network ip address mask: this is the network mask of the router lan network. It is usually 255.255.255.0 for class c networks. Enter server lan webmux ip address: this is the i...

  • Page 23

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 20 in the single webmux setup, this address cannot be the same as the webmux ip interface address on the server lan. For the nat setup, please continue to the common configuration section on next ...

  • Page 24

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 21 is this a primary webmux? If this is the primary, answer yes. If this is the secondary webmux, answer no. The secondary webmux automatically gets configuration information from the primary once...

  • Page 25

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 22 enter admin http port number: this is http port number for accessing management console in non-secure mode. Any unused port number can be used. Factory default port number is 24, one could choo...

  • Page 26

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 23 after the webmux is rebooted, the statistics of the incoming package, outgoing package, etc will be displayed on lcd periodically. What if i made mistake in my configuration? One can always mak...

  • Page 27: Management Console

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 24 management console after the initial configuration, user should be able to connect a web browser to the webmux. The web browser does all of the webmux management. The following sections explain...

  • Page 28

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 25 user id: there are two preset user ids • super user - allows access to all screens and functions provided by the webmux. • webmux - does not allow the user to access or change any settings view...

  • Page 29

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 26 main management console once logged into management console, this main screen will show. To continue configure webmux, normal steps are: click on the “setup” button to change administration and...

  • Page 30

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 27 this button will allow user to save and restore the webmux configuration to and from their management workstation. See later chapter for details. Setup button this button brings up the “adminis...

  • Page 31

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 28 administration set up after login as superuser, click on the setup button, you will come to this screen:.

  • Page 32

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 29 allowed remote host ips: the webmux management console and diagnose login only allow logins from these ip addresses to establish a management session. You can access from more than one ip addre...

  • Page 33

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 30 webmux http control port: since webmux load balancing incoming http traffic, the http port for the management console must be set to a different port. By default, the port is 24. You can change...

  • Page 34

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 31 to combine. When too large a mask applied, it will defeat the load balancing function of webmux. Icmp packet input policy: • accept: the webmux will allow all icmp packets to travel through the...

  • Page 35

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 32 from outside through server farms to the servers. After the connection closed from the servers to the outside computer, it will wait this timeout minutes before it removes that from the trackin...

  • Page 36

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 33 configuration to take effect. You can use the reboot button to reboot the webmux remotely. Change browser login password: name: select the login name for which the password is to be changed. Ne...

  • Page 37

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 34 set clock: click this button to go to the “set the clock” page. The time and date of the webmux then can be set. Please note that webmux internally uses gmt time zone, not your local time zone,...

  • Page 38

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 35 enter the minute of the hour. Note: the recommendation is to set the webmux clock to utc (gmt) time. Time zone: select the time or hour offset to the utc (gmt) time. You can set webmux to your ...

  • Page 39

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 36 upload/download download: this feature allows the saved (not necessarily the active) configuration to be saved at the administrative browser workstation. Click on the click here to display the ...

  • Page 40

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 37 add farm farm ip address: this is the ip address of the new farm. The farm address could be the internet known address or the address has been translated by your firewall. For example, if you w...

  • Page 41

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 38 server. From version 5.6, name label also being used to check http layer 7 protocols as part mime header in virtual hosting. The format of the farm name label will be www.Xyz.Com , max length 7...

  • Page 42

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 39 known ports in the list. For custom defined tcp service (custom health check), please specify the url for the cgi code in the setup screen. Caution: once a farm is created, the port number cann...

  • Page 43

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 40 modify farm modify farm can be invoked from the status screen by clicking on the farm ip addresses or labels. Farm ip address and port number: these numbers are displayed here for reference pur...

  • Page 44

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 41 delete: click this button to delete the entire farm. Caution: this function also deletes all the servers under this farm. Add server: click this button to add a new server to this farm. Server ...

  • Page 45

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 42 caution: like the ip address, once created, the port number cannot be changed. To correct the port number, the old server needs to be deleted and a new one to be created. Weight: scheduling pri...

  • Page 46

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 43 modify server modify server can be invoked by clicking on the server ip address on the status screen. Destination server ip address and port number: these parameters are set in the “add server”...

  • Page 47

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 44 running state: • active • favorite active • standby • last resort standby.

  • Page 48

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 45 initial setup change through browser sometimes users like to change the basic settings for the webmux through browser interface, for example, when webmux located in a hosting center across the ...

  • Page 49

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 46 after enter proper password and set clock information, then “continue” button will bring up this screen: when the mouse moving over a field, the current value will be automatically filled the f...

  • Page 50

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 47 initial configuration worksheets configuration before webmux installation equipment ip address internet router (or firewall) address webserver(s) default gateway web site ip addresses configura...

  • Page 51

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 48 sample configuration worksheets standalone webmux configuration before webmux installation equipment ip address internet router (or firewall) address 205.133.156.1 webserver(s) default gateway ...

  • Page 52

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 49 205.133.156.210, and add above three servers to the 2 nd farm..

  • Page 53: A Redundant Installation

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 50 a redundant installation configuration before webmux installation equipment ip address internet router (or firewall) address 205.133.156.1 webserver(s) default gateway 205.133.156.1 web site ip...

  • Page 54

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 51 direct routing installation of webmux configuration before webmux installation equipment ip address internet router (or firewall) address 10.1.1.1 webserver(s) default gateway 10.1.1.1 web site...

  • Page 55: Contact Information

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 52 loopback adapter, which will need to be removed, please refer to appendix 2. In the virtual farm, each server uses its original ip address to join the farm. Contact information for latest produ...

  • Page 56: Faqs

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 53 faqs q. I can’t login with my browser. It always says you are not logged into? R. To use your browser to manage the webmux, it must be set to accept all cookies. Because the cookie sets expired...

  • Page 57

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 54 r. Your servers are trying to resolve webmux’s ip address to name so it could log them into log file. To avoid this problem, set the servers not resolve the ip addresses, also adding all the ip...

  • Page 58

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 55 host can reach to the outside. If such restriction is desirable, then additional firewall is needed. Q. What can i do if the service that i want to load balance is not in the list? R. Webmux as...

  • Page 59: Regulations

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 56 regulations notice to the usa compliance information statement (declaration of conformity procedure) doc fcc part 15: this device complies with part 15 of the fcc rules. Operation is subject to...

  • Page 60

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 57 appendix 1 – how to add a loopback adapter installing the ms loopback adapter 1. Click add hardware -> add a new device -> no, i want to select the hardware from a list, and select microsoft lo...

  • Page 61

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 58 appendix 2 - how to make route delete reboot persistent 1. In a windows system, go to boot drive root by cd c:\; 2. Use a text editor to create a text file, in which it contains one line: route...

  • Page 62: Appendix 3

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 59 appendix 3 - phone paging codes when an error occurs, the webmux will send an error code to the regular numerical pager assigned in the administration setup page. Please refer to the management...

  • Page 63

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 60 for webmux primary only • 66 - secondary is not responding. For webmux secondary only • 71 - primary failed. Secondary took over from primary. • 72 - primary went back up. Control returns to th...

  • Page 64

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 61 appendix 4 – virtual hosting issues servers serving more than one web site may do virtual hosting. Webmux supports virtual hosting by checking the virtual server’s response. There are three dif...

  • Page 65

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 62 appendix 5 – sample custom cgi code the custom cgi-bin checking program may be written in java, vb, c, or perl, for example, or it may be a wb or shell script. Here is sample script written for...

  • Page 66

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 63 appendix 6 – access cli commands once the diagnose ports set, superuser could use ssh or telnet to access the cli commands to help troubleshoot network problems or server problems. There are ma...

  • Page 67: Index

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 64 index a active · 45, 57 add · 25, 28, 31, 39, 43, 44, 46, 53, 61 allowed · 22, 24, 31, see arp · 33, 68 c compliance · 60 cooling · 6 custom defined · 41 d default gateway · 11, 13, 21, 50, 52,...

  • Page 68

    The webmux pro and model wm108e user guide – version 5. 8 rev16 copyright© 1997-2005 cai networks, inc. 65 n nat · 3, 7, 18, 19, 21, 22, see netmask · 11, 31, 56 ntp · 34, 36, 41 o out-of-path · 4, 7, 8, 14, 15, 19, 21, 22, 34 overview · 3, 7 p pager · 4, 29, 31, 64 paging · 31 passwd · 23, 51, 53, ...