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IPv6 Testing on NFS should be similar to IPv4 NFS, and when specifying ipv6 address, it needs to be enclosed in square brackets.  Link-local and site-local IPv6  addresses must be accompanied by an interface identifier.  
{{QA/Test_Case
Please see ipv6(7) manpage for details on specifying raw IPv6 addresses.
|description=IPv6 Testing on NFS should be similar to IPv4 NFS, and when specifying ipv6 address, it needs to be enclosed in square brackets.  Link-local and site-local IPv6  addresses must be accompanied by an interface identifier. See the <code>nfs(5)</code> manpage for details:
|setup=
# Prepare an NFS server that is accessible via IPv6 networking
# On the NFS server, setup a mount point in the file {{filename|/etc/exports}}
|actions=
<ol>
<li>First, attempt to mount an IPv6-based NFS mount using the {{command|mount}} command. The example below demonstrates mounting a share called {{filename|/export}} hosted by the NFS server accessible by it's IPv6 address <code>[2001:470:8:c53:20e:cff:fec6::1]</code>:
<pre>
# mount -t nfs '[2001:470:8:c53:20e:cff:fec6::1]:/export' /mnt/foo
</pre>


{{admon/tip|Note|If putting the IPv6 address in brackets does not work, try without brackets.}}


* An example of /etc/fstab shows how to mount an NFS server using a raw IPv6 link local address using brackets:
<li>Next, update {{filename|/etc/fstab}} and specify an IPv6 NFS server and mount point.  An example is included below for reference:
 
<pre>
            [fe80::215:c5ff:fb3e:e2b1%eth0]:/export /mnt nfs  defaults  0 0
[2001:470:8:c53:20e:cff::1]:/export /mnt nfs  defaults  0 0
 
</pre>
* An good example to try is to mount a nfs filesystem via an ipv6 address:
<li>Using the example above, attempt to mount the IPv6 NFS mount point with the {{command|mount}} command.
 
<pre>
            # mount -t nfs '[2001:470:8:d63:20e:cff:fec6::1]:/export' /mnt/foo
# mount /mnt
 
</pre>
 
<li> Repeat the previous step, but this time modify the file {{filename|/etc/exports}} on the NFS server to restrict access by subnet.  The following example shows restricting access by subnet for both IPv4 and IPv6 addresses.
Note: NFS Client side IPv6 support is in RHEL6.0; NFS Server side IPv6 support is in RHEL6.1
<pre>
/home 192.168.10.0/24(rw,insecure) 2001:470:8:c53::/64(rw,insecure)
</pre>
</ol>
|results=
# Mounting an IPv6-based NFS mount using the {{command|mount}} command must work
# Mounting an IPv6-based NFS mount using the {{command|mount}} command and {{filename|/etc/fstab}} must work
# Mounting an IPv6-based NFS volume succeeds even when the server restricts access by subnet
}}

Latest revision as of 13:28, 21 June 2011

Description

IPv6 Testing on NFS should be similar to IPv4 NFS, and when specifying ipv6 address, it needs to be enclosed in square brackets. Link-local and site-local IPv6 addresses must be accompanied by an interface identifier. See the nfs(5) manpage for details:

Setup

  1. Prepare an NFS server that is accessible via IPv6 networking
  2. On the NFS server, setup a mount point in the file /etc/exports

How to test

  1. First, attempt to mount an IPv6-based NFS mount using the mount command. The example below demonstrates mounting a share called /export hosted by the NFS server accessible by it's IPv6 address [2001:470:8:c53:20e:cff:fec6::1]: 
    # mount -t nfs '[2001:470:8:c53:20e:cff:fec6::1]:/export' /mnt/foo
    Note
    If putting the IPv6 address in brackets does not work, try without brackets.
  2. Next, update /etc/fstab and specify an IPv6 NFS server and mount point. An example is included below for reference: 
    [2001:470:8:c53:20e:cff::1]:/export /mnt nfs  defaults  0 0
  3. Using the example above, attempt to mount the IPv6 NFS mount point with the mount command. 
    # mount /mnt
  4. Repeat the previous step, but this time modify the file /etc/exports on the NFS server to restrict access by subnet. The following example shows restricting access by subnet for both IPv4 and IPv6 addresses. 
    /home 192.168.10.0/24(rw,insecure) 2001:470:8:c53::/64(rw,insecure)

Expected Results

  1. Mounting an IPv6-based NFS mount using the mount command must work
  2. Mounting an IPv6-based NFS mount using the mount command and /etc/fstab must work
  3. Mounting an IPv6-based NFS volume succeeds even when the server restricts access by subnet



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