Re: Does net-snmp support IPv4 and IPv6 at a time ?

Dave Shield wrote:
> On 7 July 2010 08:22, sanjaykumar <[email protected]> wrote:
>   
>> Does net-snmp support IPv4 and IPv6 at a time ?
>>     
>
> Yes.
>
>   
>> If we configure the net-snmp-5.4.2.1 with option   "--enable-ipv6"
>> Then it will support only ipv6 or both(ipv4 and ipv6)
>>     
>
> Both.
>
> Dave
>
>   
Hi Dave ,

What will be value of macro "NETSNMP_ACCESS_ARP_IPADDR_BUF_SIZE" in 
following structure

typedef struct netsnmp_arp_s {

   netsnmp_index oid_index;      /* MUST BE FIRST!! for container use */
   oid           ns_arp_index;  /* arbitrary index */
   int       flags; /* for net-snmp use */
   oid       if_index;
   u_char    arp_physaddress[NETSNMP_ACCESS_ARP_PHYSADDR_BUF_SIZE];
   u_char    arp_ipaddress[NETSNMP_ACCESS_ARP_IPADDR_BUF_SIZE];
   u_char    arp_physaddress_len;/* phys address len, 6 */
   u_char    arp_ipaddress_len;  /* ip address len, 4 | 16 */
   u_char    arp_type;           /* inetNetToMediaType 1-5 */
   u_char    arp_state;          /* inetNetToMediaState 1-7 */

} netsnmp_arp_entry;

As this macro depends on version of ip address as defined in 
"include/data_access/arp.h"

#if defined( NETSNMP_ENABLE_IPV6 )
#   define NETSNMP_ACCESS_ARP_IPADDR_BUF_SIZE 16
#else
#   define NETSNMP_ACCESS_ARP_IPADDR_BUF_SIZE 4
#endif

_/As macro are compile time entities./_

There are other structure also available which has similar macro for 
size of IP Address.

Rgds,
Sanjay

------------------------------------------------------------------------------
This SF.net email is sponsored by Sprint
What will you do first with EVO, the first 4G phone?
Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first

_______________________________________________
Net-snmp-users mailing list
[email protected]
Please see the following page to unsubscribe or change other options:
https://lists.sourceforge.net/lists/listinfo/net-snmp-users