Router (wrt300n) acting as a forwarder/server/resolver dns, why/how?

Hello

Modem speedtouch 516 defined as = bridge

Router = linksys wrt300n, made the pppoe dsl connection

OS = vista 64-bit, also have test with computer laptop linux clean/white

By making a few landmarks on the dns servers, a tested program 192.168.1.1.

This made me nervous and start questioning why is this and is there a problem of problem/vulnerability/security/etc.

192.168.1.1 is my default gateway so my router.

Do a "nslookup - 192.168.1.1' (temporary use this specific ip address as a server) and then by typing a url returns a response.

According to tech-live chat, this router does not have dns forwarding nor made any linksys router.

If the router doesn't do not dns forwarding how is, I get dns results when you do a nslookup or change the dns at 192.168.1.1?

On some tests (dnsbench of grc.com) 192.168.1.1 is faster than dns servers that my ISP router forwards/gives. If the router was dns, it would normally use the dns ips he has in his list given to him by my ISP, right? So 192.168.1.1 and ISP - dns speed should be the same speed, no?

Am I lack/misunderstanding something?

Help. Thank you

1. If the beneficiary address DNS server to the client is 192.168.1.1 router must do DNS redirection. Otherwise the customer could not resolve host names. There is no other way to do this if the client knows nothing but 192.168.1.1.

2. the router uses the servers DNS ISP as shown on the router status page. Here are the only addresses that the router knows.

3. the router is probably a DNS caching, also, so the router's responses are faster if the result is in the cache.

4. as it is a redirector is also vulnerable or not vulnerable to the poisonings and other things your ISP DNS server.

5. you can not handle. This is a redirector maybe with a bit of cache memory.

6. If you set like him your other DNS server on your customers or in the DHCP server.

Tags: Linksys Routers

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