F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Appendix Protocol Reference-6PW100

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Contents
IP routing basics ··························································································································································· 1
Routing table ······································································································································································ 1
Dynamic routing protocols ··············································································································································· 2
Route preference ······························································································································································· 2
Load sharing ······································································································································································ 3
Route backup ····································································································································································· 3
Route recursion ·································································································································································· 3
Route redistribution ··························································································································································· 3
Static routing································································································································································· 4
Default route ································································································································································· 5
RIP ·················································································································································································· 6
Overview ············································································································································································ 6
RIP route entries ························································································································································ 6
RIP timers ··································································································································································· 6
Routing loop prevention ··········································································································································· 6
RIP operation ····································································································································································· 7
RIP versions ········································································································································································ 7
RIP message format ··························································································································································· 7
RIPv1 message format ·············································································································································· 8
RIPv2 message format ·············································································································································· 8
RIPv2 authentication message format ····················································································································· 9
Supported RIP features ······················································································································································ 9
Protocols and standards ··················································································································································· 9
OSPF ··········································································································································································· 10
Overview ········································································································································································· 10
OSPF packets·································································································································································· 10
LSA types ········································································································································································· 11
OSPF area ······································································································································································ 11
Backbone area and virtual links ·························································································································· 12
Stub area and totally stub area ··························································································································· 13
NSSA area and totally NSSA area ····················································································································· 13
Router types ···································································································································································· 14
Route types ······································································································································································ 14
Route calculation ···························································································································································· 15
OSPF network types ······················································································································································· 15
DR and BDR ···································································································································································· 16
Protocols and standards ················································································································································ 17
IS-IS ·············································································································································································· 18
Overview ········································································································································································· 18
Terminology ···································································································································································· 18
IS-IS address format ······················································································································································· 18
NSAP ······································································································································································ 18
Area address ························································································································································· 19
System ID ································································································································································ 19
SEL ··········································································································································································· 19
Routing method ······················································································································································ 19