Difference between revisions of "Dummy Interface"
| Line 7: | Line 7: | ||
Steps For Installing a Dummy-Network Interface | Steps For Installing a Dummy-Network Interface | ||
| − | + | 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. | |
| − | + | 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 | ||
| − | |||
| − | + | 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 | ||
| − | + | 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. | |
# 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: | |
| − | + | 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. | |
# route -n | # route -n | ||
Revision as of 10:58, 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
