The value of vRtrIpPoolAddrPrefixLen specifies the length of
the IP netmask for this IP address.
The range of this object is 9..32 if the value of
vRtrIpPoolAddrType is set to 'ipv4'.
The range of this object is as follows if the value of
vRtrIpPoolAddrType is set to 'ipv6'.
- The range of vRtrIpPoolAddrPrefixLen is 41..56, if the value of
vRtrIpPoolAddrIpv6AssignedLen is set to 64.
- The range of vRtrIpPoolAddrPrefixLen is 33..48, if the value of
vRtrIpPoolAddrIpv6AssignedLen is set to 56.
- The range of vRtrIpPoolAddrPrefixLen is 25..40, if the value of
vRtrIpPoolAddrIpv6AssignedLen is set to 48.