A10 Networks, which is building an “identity-aware” network management product for large companies, has raised $9 million in a second round of venture backing.

New investors in the San Jose-based company, which has offices in Beijing, are Enspire Capital, H&Q/Asian Pacific and Miven Ventures. They joined existing investors Triton Ventures and Harbinger Ventures.

A10 calls its product “IP-to-ID,” which refers to how it obtains information about users from their Internet addresses (IP addresses). There are several companies that do this. A10 Networks says its appliance goes a step further by verifying an end user’s identity with their IP or Mac addresses and then scrutinizing logs within the existing networking and security tools managed by the large companies that A10 serves.

A10 Networks has now raised a total of $16 million since being founded two years ago.

Update: VentureWire notes (sub required) that the post-money valuation for the company is about $60M.