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Routing table main, Routing table vs1, Routing table vs2 – Amer Networks E5Web GUI User Manual

Page 292: Ethernet interfaces, Loopback interfaces

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Here, each organization gets a virtual system of its own. These connect to the main routing table
using pairs of loopback interfaces. The routing tables would have the following entries:

Routing Table main

Route #

Interface

Network

Gateway

1

main-wan

all-nets

defaultgw

2

main-vs1

pubip-vs1

3

main-vs2

pubip-vs2

Routing Table vs1

Route #

Interface

Network

Gateway

1

vs1-main

all-nets

2

vs1-lan

192.168.0.0/24

Routing Table vs2

Route #

Interface

Network

Gateway

1

vs2-main

all-nets

2

vs2-lan

192.168.0.0/24

Ethernet Interfaces

Interface #

Name

IP Address

Routing Table

1

main-wan

ip_main-wan

main

2

vs1-lan

192.168.0.1

vs1

3

vs2-lan

192.168.0.254

vs2

Loopback Interfaces

#

Name

IP Address

Loop to

Routing Table

1

main-vs1

ip_main-wan

vs1-main

main

2

vs1-main

pubip-vs1

main-vs1

vs1

3

main-vs2

ip_main-wan

vs2-main

main

4

vs2-main

pubip-vs2

main-vs2

vs2

For each connection between a pair of virtual systems, a pair of loopback interfaces is required,
one for each system. When traffic is sent through main-vs1, it arrives on vs1-main. When traffic is
sent through vs1-main, it is received on main-vs1. This is exactly the same as with two Clavister
Security Gateways and two interfaces, one on each, with a connection between them.

The Routing Table Membership setting means that if a connection arrives on an interface, it will be
routed according to the routing table that the interface is a member of.

Chapter 4: Routing

292

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