Middleware products verified for the support of IPv6

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The following tables collects the products tested so far during the UMD software provisioning process.

Product name Version Released in UMD update # IPv6 support Comments GGUS ticket
CREAM 1.16.2 UMD3.0.0 UMD2.0.0 YES

DPM from 1.8.8 on UMD3 and UMD4 YES Posible issues in SL6
FTS every version of FTS UMD3 and UMD4 YES

BDII 1.1.3 UMD3.0.0 UMD2.0.0 YES

LFC 1.8.7 UMD3.0.0 UMD2.0.0 YES


UI 3.5.2-1 UMD3.x UMD2.x YES

StoRM 1.11.2 UMD3.2.1 PARTIAL srmv server does not bind to IPv6 socket. workaround available. https://ggus.eu/ws/ticket_info.php?ticket=99461
frontier-squid-3 ALL
YES squid2 is not IPv6 ready. squid3 is in Preview already, investigating if it's possible to introduce in UMD4.
argus-pep-api-c, lcmaps-plugins-c-pep, argus-gsi-pep-callout, argus-pepcli, XACML ALL
YES argus-pep-api-c, lcmaps-plugins-c-pep, argus-gsi-pep-callout, argus-pepcli rely fully on libcurl, hence is fully dual-stack. XACML

does not create sockets or do name lookups.


PARTIAL lcmaps-plugins-scas-client does do a name lookup and socket creation and

is currently not IPv6 compliant, but can only connect over IPv4. This is fixed in our trunk and will be released together with a fix for OpenSSL 1.1, which is currently blocked by VOMS.


YES All currently supported versions of dCache support IPv6 in dual-stack and stand-alone mode.

Since dCache is a distributed system, it is possible to have a dCache cluster that comprises of a mixture of IPv4-only, dual-stack, and IPv6-only machines.  This, too, is supported, but obviously an IPv4-connected client cannot be redirected to an IPv6-only node. In such cases, dCache will make internal replicas or proxy the data.

Additional wiki page with the tests performed for the operations tools by JRA1.

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