Enforcing network service level agreements in a network infrastructure element comprises
receiving, at the network infrastructure element, an application-layer message comprising …

6,771,646 B1 8/2004 Sarkissian et al. 2004/0064512 A1 4/2004 Aurora et al. 6,772,211 B2
8/2004 Lu et al. 2004/OO88460 A1 5, 2004 Poisner 6,785,732 B1 8/2004 Bates et al …

Current embodiments provide for authorization and pay ment of an online commercial
transaction between a pur chaser and a merchant including verification of an identity of the …

6,300,903 B1 10/2001 Richards et al. 2002/0069279 A1 6/2002 Romero et al. 6,321,264
B1* 1 1/2001 Fletcher et al................ TO9, 224 2002, 0083, 817 A1 7, 2002 Hoshino …

(57) ABSTRACT A System and methodology for policy enforcement during authentication of
a client device for access to a network is described. A first authentication module establishes …

285 Service Provider validates token a? returns service response payment provider are
different network entities. A computer system is also provided that can conduct an online …

2003-04-17 Assigned to CISCO TECHNOLOGY, INC. reassignment CISCO TECHNOLOGY,
INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS) …

(51) Int. Cl. 2003/0172090 Al 9, 2003. ASunmaa et al. 2004/0030645 A1 2/2004 Monaghan
G06O20/40(2012.01) 2004/0180657 A1* 9/2004 Yaqub et al................ 455,435.1 G06O …

(57) ABSTRACT A method and system for providing authentication in a virtual private
network having a private AAA server is disclosed. The method generally includes receiving …

When interworking two or more networks, such as a wire less local access network (WLAN)
and a mobile communi cation network, user billing and service charging should be …