Enterasys Security Router X-PeditionTM User Manual page 16

Secondary IP ............................................................................................................................................ 5-7
Interface & Secondary IP.................................................................................................................... 5-7
ARP & Secondary IP .......................................................................................................................... 5-8
ICMP & Secondary IP......................................................................................................................... 5-8
Routing Table Manager & Secondary IP ............................................................................................ 5-9
OSPF & Secondary IP........................................................................................................................ 5-9
RIP & Secondary IP............................................................................................................................ 5-9
Unnumbered Interface & Secondary IP.............................................................................................. 5-9
NAT & Secondary IP .......................................................................................................................... 5-9
DHCP & Secondary IP ....................................................................................................................... 5-9
VPN & Secondary IP .......................................................................................................................... 5-9
VRRP & Secondary IP...................................................................................................................... 5-10
PPPoE & Secondary IP .................................................................................................................... 5-10
Maximum Transmission Unit (MTU) ....................................................................................................... 5-10
Ping ........................................................................................................................................................ 5-10
Traceroute .............................................................................................................................................. 5-10
IP Routing Protocols ..................................................................................................................................... 5-10
RIPv1 and v2 .......................................................................................................................................... 5-11
Triggered-on-Demand RIP ..................................................................................................................... 5-12
How Triggered-on-Demand RIP Works ............................................................................................ 5-12
OSPF ..................................................................................................................................................... 5-14
LSA Type 3 and 5 Summarization .................................................................................................... 5-15
OSPF Database Overflow ................................................................................................................ 5-15
OSPF Passive Interfaces ................................................................................................................. 5-16
OSPF Troubleshooting ........................................................................................................................... 5-17
Null Interface .......................................................................................................................................... 5-17
Route Preference ................................................................................................................................... 5-17
Static Routes .......................................................................................................................................... 5-18
VLAN Routing ........................................................................................................................................ 5-18
Forwarding VLAN, PPPoE over VLAN ............................................................................................. 5-19
VLAN Processing Over the XSR's Ethernet Interfaces .................................................................... 5-20
VLAN Processing: VLAN-enabled Ethernet to Standard LAN Interfaces ......................................... 5-20
VLAN Processing: VLAN-enabled Ethernet to WAN Interfaces ....................................................... 5-21
VLAN Processing: WAN Interface to a VLAN-enabled Ethernet Interface ....................................... 5-21
QoS with VLAN................................................................................................................................. 5-22
Policy Based Routing ............................................................................................................................. 5-22
Accessing the Global Routing Policy Table ...................................................................................... 5-22
Match Clauses.................................................................................................................................. 5-23
Set Clauses ...................................................................................................................................... 5-23
PBR Cache ....................................................................................................................................... 5-23
Default Network ...................................................................................................................................... 5-24
Classless Inter-Domain Routing (CIDR) ................................................................................................ 5-24
Router ID ................................................................................................................................................ 5-24
Real Time Protocol (RTP) Header Compression ................................................................................... 5-25
Network Address Translation ................................................................................................................. 5-26
Features ........................................................................................................................................... 5-26
Virtual Router Redundancy Protocol ...................................................................................................... 5-27
VRRP Definitions .............................................................................................................................. 5-28
How the VRRP Works ...................................................................................................................... 5-29
Different States of a VRRP Router ................................................................................................... 5-29
VRRP Features ...................................................................................................................................... 5-30
Multiple Virtual IP Addresses per VR ............................................................................................... 5-30
Multiple VRs Per Router ................................................................................................................... 5-30
Authentication................................................................................................................................... 5-30
xiv