Casio ISA550WBUN3K9 manual Configuring Vrrp, Click Networking Vrrp

Networking	4
Configuring VRRP

STEP 2 Enter the following information:

•IGMP Proxy: Click On to enable IGMP Proxy so that the security appliance can act as a proxy for all IGMP requests and communicate with the IGMP servers of the ISP, or click Off to disable it.

•IGMP Version: Choose either IGMP Version 1 and 2 or IGMP Version 3.

-IGMP Version 1: Hosts can join multicast groups. There are no leave messages. Routers use a time-out based mechanism to discover the groups that are of no interest to the members.

-IGMP Version 2: Leave messages are added to the protocol. This allows group membership termination to be quickly reported to the routing protocol, which is important for high-bandwidth multicast groups and/or subnets with highly volatile group membership.

-IGMP Version 3: Major revision of the protocol. It allows hosts to specify the lists of hosts from which they want to receive traffic. Traffic from other hosts is blocked inside the network. It also allows hosts to block packets inside the network that come from sources sending unwanted traffic.

•IGMP Snooping: Snooping streamlines multicast traffic handling for VLANs. By examining (snooping) IGMP membership report messages from interested hosts, multicast traffic is limited to the subset of VLAN interfaces on which the hosts reside. IGMP snooping can reduce bandwidth consumption to avoid flooding the entire VLAN. Click On to enable IGMP snooping, or click Off to disable it.

STEP 3 Click Save to apply your settings.

Configuring VRRP

Virtual Router Redundancy Protocol (VRRP) is a redundancy protocol for LAN access device. VRRP configures a groups of routers (include a master router and several backup routers) as a virtual router.

STEP 1 Click Networking > VRRP.

The VRRP window opens.

Cisco ISA500 Series Integrated Security Appliances Administration Guide 173