September 2002
Intermediate to advanced
560 pages
13h 16m
English
book
VRRP: Increasing Reliability and Failover with the Virtual Router Redundance Protocol
by Ayikudy Srikanth, Adnan Adam Onart
Content preview from VRRP: Increasing Reliability and Failover with the Virtual Router Redundance Protocol
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6.2. VRRP and Tunnels
Tunnels are traffic flows encapsulated and protected by the authentication and encryption mechanisms created within IPSec protocol suite. Figure 6-3 illustrates how a VRRP-protected LAN segment is associated through IPSec tunnels with the other parts of a VPN.
Figure 6-3. VRRP and IPSec tunnels
The LAN illustrated in Figure 6-3 has our usual VRRP virtual router configuration. This time, though, the access to the outside is not through leased lines or dial-backup facilities but through IPSec tunnels over public networks. In order to make the VRRP protection meaningful, the IPSec tunnels, T1 and T2, are given equivalent security ...
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