Suggested-by: Thomas Lamprecht <t.lampre...@proxmox.com>
Signed-off-by: Fabian Ebner <f.eb...@proxmox.com>
---

Changes from v1:
    * use existing helper functions to determine the correct transport type

 PVE/Storage/NFSPlugin.pm | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/PVE/Storage/NFSPlugin.pm b/PVE/Storage/NFSPlugin.pm
index cb16864..39bf15a 100644
--- a/PVE/Storage/NFSPlugin.pm
+++ b/PVE/Storage/NFSPlugin.pm
@@ -5,6 +5,8 @@ use warnings;
 use IO::File;
 use Net::IP;
 use File::Path;
+
+use PVE::Network;
 use PVE::Tools qw(run_command);
 use PVE::ProcFSTools;
 use PVE::Storage::Plugin;
@@ -164,9 +166,16 @@ sub check_connection {
 
     my $cmd;
     if (defined($opts) && $opts =~ /vers=4.*/) {
+       my $ip = PVE::JSONSchema::pve_verify_ip($server, 1);
+       if (!defined($ip)) {
+           $ip = PVE::Network::get_ip_from_hostname($server);
+       }
+
+       my $transport = PVE::JSONSchema::pve_verify_ipv4($ip, 1) ? 'tcp' : 
'tcp6';
+
        # nfsv4 uses a pseudo-filesystem always beginning with /
        # no exports are listed
-       $cmd = ['/usr/sbin/rpcinfo', '-T', 'tcp', $server, 'nfs', '4'];
+       $cmd = ['/usr/sbin/rpcinfo', '-T', $transport, $ip, 'nfs', '4'];
     } else {
        $cmd = ['/sbin/showmount', '--no-headers', '--exports', $server];
     }
-- 
2.20.1



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