How to get ipaddress

Hi all,

    I want to get the ip address of a system connected to a particular
port of a snmp enabled switch.
Is there any oid available for getting ipaddress for  corresponding
port.

Its Like
    port no            Ipaddress
    1                    192.168.0.1
    2                    192.168.0.2
    8                    192.168.0.76

The switch i am having is  24 TX Port + 2 GB Stackable Intelligent
Switch HCL
When i execute the command for getting atTable,i am getting the
atIfindex unique
for all ip addresses


[root@Linux root]# snmptable -v 1 -c public 151.8.18.196 atTable
SNMP table: RFC1213-MIB::atTable

atIfIndex        atPhysAddress atNetAddress
         1 "00 0D 61 64 6C FB "  97:08:0A:14
         1 "00 0F EA 86 C0 AA "  97:08:0A:2D
         1 "00 0D 61 6D 21 71 "  97:08:12:19
         1 "00 0D 61 6D 21 71 "  97:08:12:61
         1 "00 0D 61 6B 79 19 "  97:08:14:1D
         1 "01 00 5E 00 00 01 "  E0:00:00:01


if any one is having any idea regarding this,please share with me

Thanks
Nithin