The value of tmnxSubRadiusAcceptVendorId specifies
the RADIUS Vendor-Id.
If the value of tmnxSubRadiusAcceptVendorId is equal to zero, the
attribute type specified by tmnxSubRadiusAcceptAttributeType must be
accepted if it appears outside of a Vendor-Specific attribute.
If the value of tmnxSubRadiusAcceptVendorId is not equal to zero, the
attribute type specified by tmnxSubRadiusAcceptAttributeType must be
accepted if it appears as a sub-attribute within a Vendor-Specific
attribute with Vendor-Id equal to the value of
tmnxSubRadiusAcceptVendorId.