The type of link. A new dialup link is created when this field is set to the value isdn-dialup(1), dialin-only(3) or multiuser(5). The maximum number of dialup links is limited by system memory. Each dialup link should have at least one corresponding entry in the biboDialTable to configure the remote ISDN telephone number(s).

A leased line link, can not be created by setting this field to leased(2), but is automatically established when the IsdnChType field is set to either 'leased-dte' or 'leased-dce' (which doesn't make a difference for PPP, but must be set correctly for other encapsulation methods). Naturally, when the IsdnChType field is set to any other value, the biboPPPTable entry is removed. In both cases, a new entry in the biboPPPTable creates corre- corresponding entries in the ifTable (a new interface) and in the biboPPPStatTable (PPP statistics).

Setting this object to multiuser(5), up to biboPPPMaxConn matching incoming connections (see biboPPPAuthentication, biboPPPAuthSecret, biboPPPAuthIdent) from different dialin partners will be accepted.