I ran it in debug mode as shown below. I also ran and individual snmpwalk just to show that the walking does work. johnsonr@nmscrme01 > ./snmptest.pl -d nodes=/opt/home/johnsonr/scripts/nodes - 10.245.159.58 -- interfaces.ifTable.ifEntry.ifDescr, Vlan1 -- interfaces.ifTable.ifEntry.ifAdminStatus, up(1) -- interfaces.ifTable.ifEntry.ifOperStatus, up(1) -- interfaces.ifTable.ifEntry.ifLastChange, Timeticks: (1095498) 3:02:34.98 johnsonr@nmscrme01 > cat output.csv interfaces.ifTable.ifEntry.ifDescr,interfaces.ifTable.ifEntry.ifAdminStatus,interfaces.ifTable.ifEntry.ifOperStatus,interfaces.ifTable.ifEntry.ifLastChange Vlan1,up(1),up(1),Timeticks: (1095498) 3:02:34.98 johnsonr@nmscrme01 > snmpwalk 10.245.159.58 VER143r interfaces.ifTable.ifEntry.ifDescr interfaces.ifTable.ifEntry.ifDescr.1 = FastEthernet0/1 interfaces.ifTable.ifEntry.ifDescr.2 = FastEthernet0/2 interfaces.ifTable.ifEntry.ifDescr.3 = FastEthernet0/3 interfaces.ifTable.ifEntry.ifDescr.4 = FastEthernet0/4 interfaces.ifTable.ifEntry.ifDescr.5 = FastEthernet0/5 interfaces.ifTable.ifEntry.ifDescr.6 = FastEthernet0/6 interfaces.ifTable.ifEntry.ifDescr.7 = FastEthernet0/7 interfaces.ifTable.ifEntry.ifDescr.8 = FastEthernet0/8 interfaces.ifTable.ifEntry.ifDescr.9 = FastEthernet0/9 interfaces.ifTable.ifEntry.ifDescr.10 = FastEthernet0/10 interfaces.ifTable.ifEntry.ifDescr.11 = FastEthernet0/11 interfaces.ifTable.ifEntry.ifDescr.12 = FastEthernet0/12 interfaces.ifTable.ifEntry.ifDescr.13 = FastEthernet0/13 interfaces.ifTable.ifEntry.ifDescr.14 = FastEthernet0/14 interfaces.ifTable.ifEntry.ifDescr.15 = FastEthernet0/15 interfaces.ifTable.ifEntry.ifDescr.16 = FastEthernet0/16 interfaces.ifTable.ifEntry.ifDescr.17 = FastEthernet0/17 interfaces.ifTable.ifEntry.ifDescr.18 = FastEthernet0/18 interfaces.ifTable.ifEntry.ifDescr.19 = FastEthernet0/19 interfaces.ifTable.ifEntry.ifDescr.20 = FastEthernet0/20 interfaces.ifTable.ifEntry.ifDescr.21 = FastEthernet0/21 interfaces.ifTable.ifEntry.ifDescr.22 = FastEthernet0/22 interfaces.ifTable.ifEntry.ifDescr.23 = FastEthernet0/23 interfaces.ifTable.ifEntry.ifDescr.24 = FastEthernet0/24 interfaces.ifTable.ifEntry.ifDescr.25 = FastEthernet0/25 interfaces.ifTable.ifEntry.ifDescr.26 = FastEthernet0/26 interfaces.ifTable.ifEntry.ifDescr.27 = FastEthernet0/27 interfaces.ifTable.ifEntry.ifDescr.28 = FastEthernet0/28 interfaces.ifTable.ifEntry.ifDescr.29 = FastEthernet0/29 interfaces.ifTable.ifEntry.ifDescr.30 = FastEthernet0/30 interfaces.ifTable.ifEntry.ifDescr.31 = FastEthernet0/31 interfaces.ifTable.ifEntry.ifDescr.32 = FastEthernet0/32 interfaces.ifTable.ifEntry.ifDescr.33 = FastEthernet0/33 interfaces.ifTable.ifEntry.ifDescr.34 = FastEthernet0/34 interfaces.ifTable.ifEntry.ifDescr.35 = FastEthernet0/35 interfaces.ifTable.ifEntry.ifDescr.36 = FastEthernet0/36 interfaces.ifTable.ifEntry.ifDescr.37 = FastEthernet0/37 interfaces.ifTable.ifEntry.ifDescr.38 = FastEthernet0/38 interfaces.ifTable.ifEntry.ifDescr.39 = FastEthernet0/39 interfaces.ifTable.ifEntry.ifDescr.40 = FastEthernet0/40 interfaces.ifTable.ifEntry.ifDescr.41 = FastEthernet0/41 interfaces.ifTable.ifEntry.ifDescr.42 = FastEthernet0/42 interfaces.ifTable.ifEntry.ifDescr.43 = FastEthernet0/43 interfaces.ifTable.ifEntry.ifDescr.44 = FastEthernet0/44 interfaces.ifTable.ifEntry.ifDescr.45 = FastEthernet0/45 interfaces.ifTable.ifEntry.ifDescr.46 = FastEthernet0/46 interfaces.ifTable.ifEntry.ifDescr.47 = FastEthernet0/47 interfaces.ifTable.ifEntry.ifDescr.48 = FastEthernet0/48 interfaces.ifTable.ifEntry.ifDescr.49 = GigabitEthernet0/1 interfaces.ifTable.ifEntry.ifDescr.50 = GigabitEthernet0/2 interfaces.ifTable.ifEntry.ifDescr.51 = Null0 interfaces.ifTable.ifEntry.ifDescr.52 = Vlan1