Config Ubuntu 6.10 NIC with multi-IP addresses

Does anyone know how to give multiple IP address to a single network card. I'm using Ubuntu 6.10. This is my current interfaces file.

Code:

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
#iface eth0 inet dhcp
iface eth0 inet static
	address 192.168.0.20
	netmask 255.255.255.0
	network 192.168.0.0
	broadcast 192.168.0.255
	gateway 192.168.0.10

 

Have a look at the Debian Sarge tutorial: http://www.howtoforge.com/perfect_setup_debian_sarge_p3

 

Ahh, I forgot to add the IP's to the hosts file

Thanks!

 

Shoold I be conserned about this waring? this message on showed after adding all 5 IP's in /etc/hosts

Code:

user@linux:~# /etc/init.d/networking restart
 * Reconfiguring network interfaces...
SIOCDELRT: No such process
SIOCDELRT: No such process
SIOCDELRT: No such process
SIOCDELRT: No such process
SIOCDELRT: No such process
   ...done.

/etc/hosts

Code:

127.0.0.1	localhost	linux
#127.0.1.1	linux.WorkGroup	linux
192.168.20.20	linux.mydomain.com linux
192.168.20.21	virtual-ip1.mydomain.com	virtual-ip1
192.168.20.22	virtual-ip2.mydomain.com	virtual-ip2
192.168.20.23	virtual-ip3.mydomain.com	virtual-ip3
192.168.20.24	virtual-ip4.mydomain.com	virtual-ip4
192.168.20.25	virtual-ip5.mydomain.com	virtual-ip5

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

/etc/network/interfaces

Code:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
#iface eth0 inet dhcp
iface eth0 inet static
	address 192.168.20.20
	netmask 255.255.255.0
	network 192.168.20.0
	broadcast 192.168.20.255
	gateway 192.168.20.10

auto eth0:0
iface eth0:0 inet static
	address 192.168.20.21
	netmask 255.255.255.0
	network 192.168.20.0
	broadcast 192.168.20.255
	gateway 192.168.20.10

auto eth0:1
iface eth0:1 inet static
	address 192.168.20.22
	netmask 255.255.255.0
	network 192.168.20.0
	broadcast 192.168.20.255
	gateway 192.168.20.10

auto eth0:2
iface eth0:2 inet static
	address 192.168.20.23
	netmask 255.255.255.0
	network 192.168.20.0
	broadcast 192.168.20.255
	gateway 192.168.20.10

auto eth0:3
iface eth0:3 inet static
	address 192.168.20.24
	netmask 255.255.255.0
	network 192.168.20.0
	broadcast 192.168.20.255
	gateway 192.168.20.10

auto eth0:4
iface eth0:4 inet static
	address 192.168.20.25
	netmask 255.255.255.0
	network 192.168.20.0
	broadcast 192.168.20.255
	gateway 192.168.20.10

ifconfig

Code:

eth0      Link encap:Ethernet  HWaddr 00:0C:29:35:BF:A4  
          inet addr:192.168.20.20  Bcast:192.168.20.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe35:bfa4/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:284 errors:0 dropped:0 overruns:0 frame:0
          TX packets:325 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:252091 (246.1 KiB)  TX bytes:25954 (25.3 KiB)
          Interrupt:185 Base address:0x1400 
 
eth0:0    Link encap:Ethernet  HWaddr 00:0C:29:35:BF:A4  
          inet addr:192.168.20.21  Bcast:192.168.20.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:185 Base address:0x1400 
 
eth0:1    Link encap:Ethernet  HWaddr 00:0C:29:35:BF:A4  
          inet addr:192.168.20.22  Bcast:192.168.20.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:185 Base address:0x1400 
 
eth0:2    Link encap:Ethernet  HWaddr 00:0C:29:35:BF:A4  
          inet addr:192.168.20.23  Bcast:192.168.20.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:185 Base address:0x1400 
 
eth0:3    Link encap:Ethernet  HWaddr 00:0C:29:35:BF:A4  
          inet addr:192.168.20.24  Bcast:192.168.20.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:185 Base address:0x1400 
 
eth0:4    Link encap:Ethernet  HWaddr 00:0C:29:35:BF:A4  
          inet addr:192.168.20.25  Bcast:192.168.20.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:185 Base address:0x1400 
 
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1309 (1.2 KiB)  TX bytes:1309 (1.2 KiB)

 

What's the output of

Code:

ifconfig

?

 

I edited my post. It doesn't seem to have any effect. All IP addesses work fine.

 

Then everything's ok, I guess.