The value of tmnxL2tpApNasPortBitspec specifies what number will be put in the RADIUS NAS-Port attribute if included in RADIUS accounting-request messages. This field is only applicable if the 'nasPort' bit is set in tmnxL2tpApIncludeAttributes. <origin> ::= 'o' | 'i' | 's' | 'm' | 'p' | 'v' | 'c' 'c' - ATM VCI (Virtual Channel Identifier) 'i' - inner VLAN ID 'm' - ISA MDA number / ESA number 'o' - outer VLAN ID 'p' - port number 's' - ISA slot number / ESA VAPP number 'v' - ATM VPI (Virtual Path Identifier) Maximum 32 bits can be specified. If less than 32 bits are specified, the least significant bits are used and the omitted higher bits are set to zero. Note that 'm' and 's' will contain ISA or ESA numbers, depending on the personality of the L2TP group. Example: *12o*12i*2s01 means 'the 12 least significant bits of the outer VLAN ID, followed by the 12 least significant bits of the inner VLAN ID, followed by the two least significant bits of the ISA slot number or ESA VAPP number, followed by a zero and a one-bit', stored in network order in the least significant bits: 0000ooooooooooooiiiiiiiiiiiiss01.