make dhcpdSnmpPoolTable a net-snmp standard compliant table

[dhoffend]

Using the snmptable commands fails cause the mib is not compliant with normal net-snmp tables.

$ snmptable -c public ns1 NETTRACK-DHCPD-SNMP-MIB::dhcpdSnmpPoolTable
Was that a table? NETTRACK-DHCPD-SNMP-MIB::dhcpdSnmpPoolTable

After fixing the mib and extension it looks like:

$ snmptable -c public ns1 NETTRACK-DHCPD-SNMP-MIB::dhcpdSnmpPoolTable
SNMP table: NETTRACK-DHCPD-SNMP-MIB::dhcpdSnmpPoolTable

 dhcpdSnmpPoolIndex dhcpdSnmpPoolDescription dhcpdSnmpPoolSize dhcpdSnmpPoolActiveLeases dhcpdSnmpPoolExpiredLeases dhcpdSnmpPoolAvailableAddresses
                  1              "WLAN Gast"              2023                         0                       1180                            2023
                  2              "WLAN Orga"               245                         0                        167                             245
                  3              "WLAN Anki"               245                         0                        180                             245
                  4              "Spielfeld"              1640                         0                          0                            1640
                  5              "Westblock"               615                         0                        268                             615
                  6               "Ostblock"               615                         0                          0                             615
                  7          "Nordtribuehne"              1230                         0                        127                            1230
                  8           "Nordoberrang"              1025                         0                          0                            1025
                  9            "Trainerbank"               410                         0                          0                             410
                 11          "Spielfeld A-B"               205                         0                        118                             205
                 12          "Spielfeld C-D"               205                         0                        124                             205
                 13          "Spielfeld E-F"               205                         0                        131                             205
                 14          "Spielfeld G-H"               205                         0                        134                             205
                 15          "Spielfeld I-J"               205                         0                        123                             205
                 16          "Spielfeld K-L"               205                         0                        137                             205
                 17          "Spielfeld M-N"               205                         0                        139                             205
                 18          "Spielfeld O-P"               205                         0                        117                             205
                 21       "Trainerbank Heim"               205                         0                        119                             205
                 22            "Westblock A"               205                         0                        112                             205
                 23          "Westblock B-C"               205                         0                          0                             205
                 24          "Westblock D-E"               205                         0                          0                             205
                 25           "Ostblock A-B"               205                         0                        125                             205
                 26           "Ostblock C-D"               205                         0                        123                             205
                 27           "Ostblock E-F"               205                         0                        130                             205
                 28       "Trainerbank Gast"               205                         0                        114                             205
                 31      "Nordtribuehne A-B"               205                         0                        127                             205
                 32   "Nordtribuehne C-D(1)"               205                         0                        119                             205
                 33   "Nordtribuehne C-D(2)"               205                         0                        205                             205
                 34   "Nordtribuehne E-F(1)"               205                         0                          0                             205
                 35   "Nordtribuehne E-F(2)"               205                         0                        119                             205
                 36      "Nordtribuehne G-H"               205                         0                        130                             205
                 41      "Nord-Oberrang A-B"               205                         0                        127                             205
                 42      "Nord-Oberrang C-D"               205                         0                        132                             205
                 43      "Nord-Oberrang E-F"               205                         0                        140                             205
                 44      "Nord-Oberrang G-H"               205                         0                        144                             205
                 45      "Nord-Oberrang I-J"               205                         0                        131                             205
                 69                   "Team"               254                         0                        151                             254

ATTENTION: This change breaks existing setups where dhcpd-snmp is already in use but it makes it more compliant with other snmp pollers where you just say which table you want to poll and collect.

[bklang]

We've tested this and it's working for us. Thanks @dhoffend