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DNS address?

 
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Tagge



Joined: 23 Aug 2005
Posts: 93

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DNS address?
PostPosted: Fri May 08, 2009 3:50 pm     Reply with quote

In the CCS TCP/IP stack, how can I manually assign the DNS server address? It seems to allways be dynamic..
I would like to point it to my router directly, for ex 192.168.1.1
I havent find where it could be done, unlike the unit IP-address, subnet mask and gateway.
It mostly seems to work allright anyway, but just to be sure..
anyone figured it out?
Thanks/tagge
andrewg



Joined: 17 Aug 2005
Posts: 316
Location: Perth, Western Australia

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PostPosted: Fri May 08, 2009 10:04 pm     Reply with quote

Set AppConfig.PrimaryDNSServer.
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Andrew
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PostPosted: Tue May 12, 2009 2:33 am     Reply with quote

Hi, thanks, but there is no function, at least, as
"Set AppConfig.PrimaryDNSServer"
I assume I just cant write in the ip address in the struct.. SMTPServerAddr, or? how should it look like in that case?
What should I then disable to avoid the DNS functions to owerwrite it?
Code:

typedef struct _APP_CONFIG
{
    IP_ADDR     MyIPAddr;
    MAC_ADDR    MyMACAddr;
    IP_ADDR     MyMask;
    IP_ADDR     MyGateway;
    IP_ADDR     PrimaryDNSServer;
    struct
    {
        unsigned char bIsDHCPEnabled : 1;
        unsigned char bInConfigMode : 1;
    } Flags;
    WORD_VAL    SerialNumber;
    IP_ADDR     SMTPServerAddr;     // Not used. In CCS ???
    IP_ADDR     TFTPServerAddr;     // Not used.
   BYTE      NetBIOSName[16];
} APP_CONFIG;

But most confusing is that the DNS address changes, and often to a not working one.. But only when reprogramming, not by reset Confused
Then it usually uses the last obtained, even if its not up to date..
But if I turn on the DHCP function, it get the right DNS.
Its all about resolving the IP to the SMTP server, thats needed.
but I would like to write the DNS address in manually, and wouldnt have to use the DHCP function.
andrewg



Joined: 17 Aug 2005
Posts: 316
Location: Perth, Western Australia

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PostPosted: Tue May 12, 2009 6:18 am     Reply with quote

You should have also seen:
Code:
typedef int32 DWORD;
typedef union _IP_ADDR
{
    BYTE        v[4];
    DWORD       Val;
} IP_ADDR;
That means you can write:
Code:
AppConfig.PrimaryDNSServer.Val = make32(192,168,1,1);
or maybe it should be:
Code:
AppConfig.PrimaryDNSServer.Val = make32(1,1,168,192);
? See which one works.

Just set the value at startup.
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Andrew
Tagge



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Posts: 93

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PostPosted: Tue May 12, 2009 7:52 am     Reply with quote

Code:
AppConfig.PrimaryDNSServer.Val = make32(1,1,168,192);

Works just fine! Very Happy
thanks
/tagge
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