Config Ubuntu 6.10 NIC with multi-IP addresses

Discussion in 'Server Operation' started by domino, Nov 5, 2006.

  1. domino

    domino New Member

    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
     
  2. falko

    falko Super Moderator ISPConfig Developer

  3. domino

    domino New Member

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

    Thanks!
     
  4. domino

    domino New Member

    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)
     
    Last edited: Nov 7, 2006
  5. falko

    falko Super Moderator ISPConfig Developer

    What's the output of
    Code:
    ifconfig
    ?
     
  6. domino

    domino New Member

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

    falko Super Moderator ISPConfig Developer

    Then everything's ok, I guess. :)
     

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