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Steps For Installing a Dummy-Network Interface
Steps For Installing a Dummy-Network Interface


  1. Add /sbin to your $PATH environment setting:
1. Add /sbin to your $PATH environment setting:


       # PATH=$PATH:/sbin
       # PATH=$PATH:/sbin


  2. Add an IP address and host name to your /etc/hosts table.
2. Add an IP address and host name to your /etc/hosts table.
 
For example, an Internet address of 10.0.0.1 would result in:
      For example, an Internet address of 10.0.0.1 would result in:


       echo 10.0.0.1 $HOSTNAME >> /etc/hosts
       echo 10.0.0.1 $HOSTNAME >> /etc/hosts


      NoteSybase recommends that you do not use “localhost” as an alternative.


  3. Preload the dummy network driver on the machine.
3. Preload the dummy network driver on the machine.
If this command is successful, you do not receive any messages from the server.


       # modprobe -a dummy
       # modprobe -a dummy


      If this command is successful, you do not receive any messages from the server.
4. Bind the dummy established network interface to the $HOSTNAME configured IP address.
 
  4. Bind the dummy established network interface to the $HOSTNAME configured IP address.


       # ifconfig dummy0 $HOSTNAME
       # ifconfig dummy0 $HOSTNAME
Line 31: Line 28:
       # ifconfig dummy0:1 10.0.0.3
       # ifconfig dummy0:1 10.0.0.3


  5. For a DHCP environment, add a route other than “default” to the established virtual network setup.
5. For a DHCP environment, add a route other than “default” to the established virtual network setup.


       # route add $HOSTNAME dummy0
       # route add $HOSTNAME dummy0
Line 37: Line 34:
       # route add 10.0.0.3 dummy0:1
       # route add 10.0.0.3 dummy0:1


  6. Check the network binding:
6. Check the network binding:
      This command gives below listed output:
This command gives below listed output:


       # ifconfig dummy0
       # ifconfig dummy0
Line 54: Line 51:
                 inet addr:10.0.0.2  Bcast:10.255.255.255  Mask:255.0.0.0
                 inet addr:10.0.0.2  Bcast:10.255.255.255  Mask:255.0.0.0
                 UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
                 UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
 
      #
       # ifconfig dummy0:1
       # ifconfig dummy0:1
         dummy0:1 Link encap:Ethernet  HWaddr 2A:7B:EA:49:69:E2
         dummy0:1 Link encap:Ethernet  HWaddr 2A:7B:EA:49:69:E2
Line 61: Line 58:


7. Check the route binding:
7. Check the route binding:
      This command shows the routing as it is set up.
This command shows the routing as it is set up.


       # route -n
       # route -n

Revision as of 09:58, 28 April 2009

Reference Info 1: Linux Network Administrators Guide

Installing the Linux dummy-network interface

If your Linux system does not have network communication hardware installed, or if it uses the dynamic host configuration protocol (DHCP) for network IP address configuration, you can install Adaptive Server components using these procedures.

Steps For Installing a Dummy-Network Interface

1. Add /sbin to your $PATH environment setting: 

     # PATH=$PATH:/sbin

2. Add an IP address and host name to your /etc/hosts table. For example, an Internet address of 10.0.0.1 would result in: 

     echo 10.0.0.1 $HOSTNAME >> /etc/hosts


3. Preload the dummy network driver on the machine. If this command is successful, you do not receive any messages from the server. 

     # modprobe -a dummy

4. Bind the dummy established network interface to the $HOSTNAME configured IP address. 

     # ifconfig dummy0 $HOSTNAME
     # ifconfig dummy0:0 10.0.0.2
     # ifconfig dummy0:1 10.0.0.3

5. For a DHCP environment, add a route other than “default” to the established virtual network setup. 

     # route add $HOSTNAME dummy0
     # route add 10.0.0.2 dummy0:0
     # route add 10.0.0.3 dummy0:1

6. Check the network binding: This command gives below listed output: 

     # ifconfig dummy0
       dummy0   Link encap:Ethernet  HWaddr 2A:7B:EA:49:69:E2
                inet addr:10.0.0.1  Bcast:10.255.255.255  Mask:255.0.0.0
                inet6 addr: fe80::287b:eaff:fe49:69e2/64 Scope:Link
                UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
                RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
                collisions:0 txqueuelen:0
                RX bytes:0 (0.0 b)  TX bytes:824 (824.0 b)
     #
     # ifconfig dummy0:0
       dummy0:0 Link encap:Ethernet  HWaddr 2A:7B:EA:49:69:E2
                inet addr:10.0.0.2  Bcast:10.255.255.255  Mask:255.0.0.0
                UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
     #
     # ifconfig dummy0:1
       dummy0:1 Link encap:Ethernet  HWaddr 2A:7B:EA:49:69:E2
                inet addr:10.0.0.3  Bcast:10.255.255.255  Mask:255.0.0.0
                UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1

7. Check the route binding: This command shows the routing as it is set up. 

     # route -n
     Kernel IP routing table:
     Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
     10.0.0.1        0.0.0.0         255.255.255.255 UH    0      0        0 dummy0
     10.0.0.2        0.0.0.0         255.255.255.255 UH    0      0        0 dummy0
     10.0.0.3        0.0.0.0         255.255.255.255 UH    0      0        0 dummy0
     10.0.0.0        0.0.0.0         255.0.0.0       U     0      0        0 dummy0
     127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
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