View source for Single to Double NIC

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[[Category: Tutorials| NIC]]
[[Category: Networking]]
[[Category:Network Adapters|*]]

When switching from a Single NIC setup to using dual NICs, Changes need to be made in several places. Order of these operations is important.

* Web Admin: Show devices tree/My Devices/CORE > Device data/Network Interfaces
** Change: ''eth0,dhcp|'''eth0:0''',192.168.80.1,255.255.255.0'' to: ''eth0,dhcp|'''eth1''',192.168.80.1,255.255.255.0''
* ''/etc/network/interfaces'' (can be edited from the launch manager).
** Comment out eth0:0 related entries:
 auto lo
         iface lo inet loopback
         address 127.0.0.1
         netmask 255.0.0.0
 #
 #
 # Set eth0 to use DHCP to connect to cable/DSL/etc automatically.
 auto eth0
         iface eth0 inet dhcp
 #
 #auto eth0:0
 #iface eth0:0 inet static
 #       address 192.168.80.1
 #       netmask 255.255.255.0
 #
 # Set eth1 to use the internal network.
 auto eth1
         iface eth1 inet static
         address 192.168.80.1
         netmask 255.255.255.0

* Ensure /etc/default/dhcp3-server contains (only) INTERFACES="eth1" for the internal network.
* You may need to edit ''/etc/iftab'' as well and add a line similar to the eth0 one for your new eth1 with it's own unique MAC address.  See '''man iftab''' for more details on this file.
* Web Admin: Advanced menu > Network > Network Settings (more or less optional) 
* Check the /etc/exports file, if it looks like this (Please note that these are just examples, your file will likely be somewhat different):
 # /etc/exports: the access control list for filesystems which may be exported
 #               to NFS clients.  See exports(5).
 #
 # Example for NFSv2 and NFSv3:
 # /srv/homes       hostname1(rw,sync) hostname2(ro,sync)
 #
 # Example for NFSv4:
 # /srv/nfs4        gss/krb5i(rw,sync,fsid=0,crossmnt)
 # /srv/nfs4/homes  gss/krb5i(rw,sync)
 #
 
 ## BEGIN : InternalStorageDevices
 
 /mnt/device/81 '''192.168.80'''/255.255.255.0''' eth0'''(rw,no_root_squash,no_all_squash,async,nohide,no_subtree_check)
 ## END : InternalStorageDevices
 
 
 ## BEGIN : CommonDiskless
 
 /home                   '''192.168.80'''/255.255.255.0''' eth0'''(rw,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/orbiter      '''192.168.80'''/255.255.255.0''' eth0'''(rw,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/keys         '''192.168.80'''/255.255.255.0''' eth0'''(ro,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/deb-cache    '''192.168.80'''/255.255.255.0''' eth0'''(ro,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/var          '''192.168.80'''/255.255.255.0''' eth0'''(rw,no_root_squash,no_all_squash,sync,no_subtree_check)
 
 ## END : CommonDiskless
 
 
 ## BEGIN : DisklessMDRoots
 
 /usr/pluto/diskless/108 '''192.168.80'''/255.255.255.0''' eth0'''(rw,no_root_squash,no_all_squash,sync,no_subtree_check)
 ## END : DisklessMDRoots

:Then it should be changed to look like this:

 # /etc/exports: the access control list for filesystems which may be exported
 #               to NFS clients.  See exports(5).
 #
 # Example for NFSv2 and NFSv3:
 # /srv/homes       hostname1(rw,sync) hostname2(ro,sync)
 #
 # Example for NFSv4:
 # /srv/nfs4        gss/krb5i(rw,sync,fsid=0,crossmnt)
 # /srv/nfs4/homes  gss/krb5i(rw,sync)
 #
 
 ## BEGIN : InternalStorageDevices
 
 /mnt/device/81 '''192.168.80.0'''/255.255.255.0(rw,no_root_squash,no_all_squash,async,nohide,no_subtree_check)
 ## END : InternalStorageDevices
 
 
 ## BEGIN : CommonDiskless
 
 /home                   '''192.168.80.0'''/255.255.255.0(rw,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/orbiter      '''192.168.80.0'''/255.255.255.0(ro,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/keys         '''192.168.80.0'''/255.255.255.0(ro,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/deb-cache    '''192.168.80.0'''/255.255.255.0(ro,no_root_squash,no_all_squash,sync,no_subtree_check)
 /usr/pluto/var          '''192.168.80.0'''/255.255.255.0(rw,no_root_squash,no_all_squash,sync,no_subtree_check)
 
 ## END : CommonDiskless
 
 
 ## BEGIN : DisklessMDRoots
 
 /usr/pluto/diskless/108 '''192.168.80.0'''/255.255.255.0(rw,no_root_squash,no_all_squash,sync,no_subtree_check)
 ## END : DisklessMDRoots

If you had to make these changes you might also like to modify ''/usr/pluto/bin/Diskless_ExportsNFS.sh'' accordingly as well since that seems to be the template from which ''/etc/exports'' is generated.