What is an advantage of configuring a Cisco router as a relay agent?

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  • Post last modified:October 29, 2020
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Last Updated on October 29, 2020 by Admin

What is an advantage of configuring a Cisco router as a relay agent?

  • It will allow DHCPDISCOVER messages to pass without alteration.
  • It can forward both broadcast and multicast messages on behalf of clients.
  • It can provide relay services for multiple UDP services.
  • It reduces the response time from a DHCP server.
    Answers Explanation & Hints:

    By default, the ip helper-address command forwards the following eight UDP services:Port 37: Time
    Port 49: TACACS
    Port 53: DNS
    Port 67: DHCP/BOOTP client
    Port 68: DHCP/BOOTP server
    Port 69: TFTP
    Port 137: NetBIOS name service
    Port 138: NetBIOS datagram service

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