AS5957 AS5957

A US Department of Defense network from the block DNIC-ASBLK-05800-06055,

registered to the DoD Network Information Center (DNIC). Its address space serves

the Navy DoD Supercomputing Resource Center (Navy DSRC) — reverse DNS across

its ranges resolves under navydsrc.hpc.mil.

What it's used for

• Networking for one of the DoD Supercomputing Resource Centers under the High Performance Computing Modernization Program (HPCMP). The Navy DSRC sits within the Naval Meteorology and Oceanography Command at Stennis Space Center, Mississippi, and provides supercomputing to DoD scientists and engineers.
• It announces four contiguous /24s of DNIC space plus an IPv6 /48 from 2001:480::/32, the block registered as DREN-V6.

Notable

• A government / DoD research network, not a commercial ISP or host.
• The IPv6 announcement is the tell: DREN is the Defense Research and Engineering Network, the HPCMP's nationwide low-latency R&D backbone connecting the supercomputing centres to their user communities.

Interesting

• DREN has a long-standing reputation as an early and aggressive IPv6 adopter within the US government, which fits an AS whose IPv6 footprint is proportionally far larger than its modest IPv4 one.