EDNS Client-Subnet

The problemA recursive DNS resolver such as Google Public DNS or your ISP's DNS server resolves domain names into IP addresses. Popular websites or services are usually hosted on Content Delivery Networks (CDN) where a domain name could resolve into different IP corresponding to servers in disperse locations. In such…

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The Switch in Edgerouter X

(UDATE 2016-10-29: There is a catch in Ubiquiti's implementation in ER-X and ER-X-SFP as I discussed in a new blog post.) Ubiquiti builds their Edgerouter X platform on MediaTek MT7621AT SoC. Currently this platform has three products: EdgeRouter X (5 GbE ports), EdgeRouter X SFP (ER-X plus one SFP port)…

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