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2830n DNS Proxy Issue

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06 Apr 2011 17:09 #67152 by stevesims
2830n DNS Proxy Issue was created by stevesims
Hi - I have just taken delivery of a shiny new 2830 to replace my older Vigor, I used the quick start - it was the correct IP by default, connected in fine but left the DHCP on, all expected. I disabled the LAN DHCP, as I have DHCP/WINS/DNS internaly, and thought all would be good. But the Draytec wont answer DNS queries via the DNS proxy on its LAN address. If I re-enable DHCP, and connect a client, it gives out my ISP's DNS servers instead of itself? I have not come across an ADSL router that doesn't do DNS proxy by default - and I cannot see where to enable it!! Anyone had any issues similar? If I manually set a client and use my ISP DNS servers, all works fine, set it to the routers LAN address - all stops - I have confirmed no response using nslookup and setting the timeout to 30 secs... I could set my internal DNS to forward to my ISP's DNS but I want to add a second ADSL on another provider - so it all gets really messy... It should just pickup requests from its LAN ip and forward them to whatever the active WAN connection's DNS servers are shouldn't it?

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14 Apr 2011 09:10 #67285 by ghostworks
Replied by ghostworks on topic Re: 2830n DNS Proxy Issue
Same with my Router its always uses the isp DNS and is why i have to add my servers to the host files in each client so the can see them ie. the Windows home server etc

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14 Apr 2011 09:27 #67287 by nealuk
Replied by nealuk on topic Re: 2830n DNS Proxy Issue
Does the issue continue after command line is used to manually specify the DNS as per: http://www.draytek.co.uk/support/kb_vigor_dns.html ?

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21 Apr 2011 16:15 #67411 by stevescot
Replied by stevescot on topic Re: 2830n DNS Proxy Issue
I had a similar problem - ended up setting in LAN-General Setup-Details-DNS Server IP address Primary to be our domain server (so that domain based queries , and queries on local machines would work)
and 8.8.8.8 as the forwarder on our DNS server (that's Google's free DNS server, and it's quite fast, and ISP independant.)

note, I think this sets the DHCP settings (so sets each client to these DNS servers rather than proxying)

if you have the router get it's ip address automatically - then it might pick up your ISP's dns servers (worked for me, and though we have a static ip - it gets that automatically)
(wan-internet access - details) select radio button: "No (Dynamic IP)"

Regards

Steve

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26 Apr 2011 16:07 #67457 by ghostworks
Replied by ghostworks on topic Re: 2830n DNS Proxy Issue
I found the 2830 to be slower than the 2820...

Torrents used to get upto 2.7mb/s on the 2820 but on the 2830 i only get at maximum 200kb/s

Used same open ports . settings , line etc

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