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	fix for bug 3214: check if IPv6 is enabled on MN
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@14616 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
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		@@ -24,6 +24,13 @@ if ($inet6support) {
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if ($inet6support) {
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   $inet6support = eval { require IO::Socket::SSL; IO::Socket::SSL->import('inet6'); 1;};
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}
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# Is IPv6 enabled on the MN or xCAT client at all?
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my $ipv6enabled = `ip addr | grep inet6`;
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if (!$ipv6enabled) {
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    $inet6support = 0;
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}
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unless ($inet6support) {
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  eval { require Socket };
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  eval { require IO::Socket::INET };
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@@ -64,6 +64,13 @@ if ($inet6support) {
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if ($inet6support) {
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   $inet6support = eval { require IO::Socket::SSL; IO::Socket::SSL->import('inet6'); 1; };
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} 
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# Is IPv6 enabled on the MN or SN at all?
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my $ipv6enabled = `ip addr | grep inet6`;
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if (!$ipv6enabled) {
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    $inet6support = 0;
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}
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unless ($inet6support) {
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  eval { require Socket };
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  eval { require IO::Socket::INET };
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