4.7

X.25 PROTOCOL ..............................................................................................................

33

4.8 FRAME RELAY PROTOCOL.................................................................................................

37

Chapter 5 Security .................................................................................................................

41

5.1

ACCESS-LIST....................................................................................................................

41

5.2 NAT – NETWORK ADDRESS TRANSLATION ........................................................................

44

5.3

VPN - IPSEC ...................................................................................................................

47

5.4

FIREWALL- CONTEXT-BASEDACCESS CONTROL (CBAC)...................................................

63

5.5

RADIUS SECURITY (AAA)..................................................................................................

68

Chapter 6 QOS .......................................................................................................................

74

6.1 CAR – COMMITTED ACCESS RATE....................................................................................

74

6.2

POLICY-BASEDROUTING...................................................................................................

77

6.3

CLASS-MAP AND POLICY-MAP ............................................................................................

78

6.4

QUEUE.............................................................................................................................

82

6.4.1 FIFO- First IN First Out............................................................................................

83

6.4.2 WFQ Weighted Fair Queuing ...............................................................................

83

6.4.3 Priority Queuing .......................................................................................................

84

6.4.4 Custom Queuing......................................................................................................

87

Appendix A Upgrade firmware..............................................................................................

92

Appendix B Router Dialing ...................................................................................................

94

Appendix C Cables / Pin-assignment for ERT-805 .............................................................

96

C.1 V.35 DTE – CB-ERTV35-MT.........................................................................................

96

C.2 V.35 DCE – CB-ERTV35-FC.........................................................................................

96

C.3 V.24 DTE – CB-ERT232-MT .........................................................................................

97

C.4 V.24 DCE – CB-ERT232-FC .........................................................................................

98

C.5 X.21 DTE – CB-ERTX21-MT.........................................................................................

98

C.6 X.21 DCE – CB-ERTX21-FC.........................................................................................

99

C.7 RJ-45 CONSOLE CABLE.................................................................................................

100

C.8 DB9 TO RJ45................................................................................................................

100

4