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Any (dis)advantage to using ISP DNS?

Discussion in 'HyperWRT Firmware' started by ericjwill, Jan 11, 2006.

  1. ericjwill

    ericjwill Network Guru Member

    Just as the title says, is there any (dis)advantage to using the ISP provided dns instead of dnsmasq?

    Also, how does spanning tree protocol work in regards to this router (im familiar with it on cisco routers) and why is comcast not friendly with it?
     
  2. swinn

    swinn Network Guru Member

    If dnsmasq is disabled then every dns request will travel outside your network to your ISP's dns servers and back.

    If dnsmasq is enabled then the dns requests will travel to your router. If the request is in its cache, then it immediately sends the result back (never leaves the LAN). If the request is not in the cache, then it will ask your ISP's dns server (or the static ones if configured) and then send the result back. So, dnsmasq is useful since dns requests will be faster if it is in the cache.

    With that said, you might or might not "feel" any difference.

    Steve
     

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