1. We have LAN internal DNS server ( )
  2. DNS server Running on my additional Domain Controller
  3. Tested with nslookup, ipaddress and hostname resolving without any error
  4. DHCP server Running on 3750 Switch ( Checked with Cisco confirmed the configuration )
  5. DNS name server pointed to


  1. Host getting ipaddress and DNS from DHCP server .Maximum file transfer Bandwidth 55KB/sec.
  2. Assigned Static DNS on Host as ISP DNSServer Address, host getting full bandwidth which is 1mb/sec.
  • What default gateway do you get when using the DHCP server and what default gateway are you using when configuring statically? – Helvick Dec 23 '10 at 17:12
  • Default getaway i am getting from DHCP server .I a mnot configure any static IPaddress and gateway , .Only i will assign the static DNS Address . All others are same as DHCP server . – kartook Dec 24 '10 at 7:06
  • If the issue is solved then please mark it as answered. – JamesBarnett Jan 9 '11 at 7:17

DNS is about creating a link from an alphabetical name (FQDN) to a numeric (IP). No more, no less. It therefore has no influence on bandwidth if you connect to the same host.

  • I Added the ISP DNS server IPAddress on DNS properties /forward zones ,Now work like a charm ..we are enjoying the 15mbps/sec bandwidth . ~~~~ ISSUE SOLVED ~~~ Thanks to all by Me.K~ – kartook Dec 28 '10 at 12:06

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