Internet Speeds Behind ASA 5505

Posted on 2012-08-12
Last Modified: 2012-08-18
I have a Cisco ASA 5505 that has been configured to act as a router as well.  I have configured 3 VLANS that have access to the internet.  For some reason the "InsideWifi" and the "Guest" VLANS have very slow internet speeds and sometime web pages wont finish loading properly.  The "Inside" VLAN gets the speeds that are expected.  The DNS server does reside on the "Inside" VLAN. Is there anything wrong with my configuration that would cause the internet speeds on the other VLANS to be slow?  My config is attached.
Question by:gdmoore85
    LVL 7

    Assisted Solution

    by:Casey Weaver
    Can you get an idea between the two VLANS how fast DNS is resolving? Can you timestamp nslookup from the INSIDE VLAN and the WIFI and GUEST VLANS to see if you have a DNS resolution issue?

    Accepted Solution


    Thanks for the reply, this issue actually ended up being a misconfigured DNS address on the DHCP server.  The DHCP server was handing out an address of rather than its own address. Your response lead me to verify the configuration of all the DNS servers.  Its one of those things that I assumed was correct and didnt take the time to check everything.
    LVL 7

    Expert Comment

    by:Casey Weaver
    No problem! Been there when configuring multiple DHCP scopes :) Glad you got it solved.

    Author Closing Comment

    The DHCP server was misconfigured handing out  Heymrdj's response lead me to look at all the DHCP settings even though my issue wasn't exactly what he had stated.

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