What is BOOTP relay?
You can configure a Juniper Networks switch to act as a Dynamic Host Configuration Protocol (DHCP) or Bootstrap Protocol (BOOTP) relay agent. This means that if the switch receives a broadcast DHCP or BOOTP request from a locally attached host (client), it relays the message to a specified DHCP or BOOTP server.
What is the purpose of the BOOTP relay agent?
A BOOTP relay agent listens to UDP port 68, and forwards BOOTP request packets received on this port to the destinations specified on the command line. The relay agent can run on any machine that has knowledge of local routers, so it does not have to be an Internet gateway machine.
How do I set up a BOOTP?
Configuring the BOOTP Service.
- Open the DHCP console by clicking Start > Run, enter dhcpmgmt.
- In the DHCP console window, right-click on the scope which should provide BOOTP Sevices.
- Click on the Advanced tab, and select Both under the section Assign IP Address to Client of:
- Click OK to save.
Which is better DHCP or BOOTP?
DHCP is popular with ISP’s because it allows a host to obtain a temporary IP address while this is not the case in BOOTP. DHCP provides more detailed information and is more efficient than BOOTP.
What do you mean by BOOTP?
BOOTP (Bootstrap Protocol) is an internet protocol that lets a network user automatically be configured to receive an IP address and have an operating system booted without user involvement.
What is BOOTP support?
BOOTP supports relay servers so you can have a central BOOTP server that assigns IP addresses to hosts in all of your subnets. Another issue with RARP is that it only allows you to assign an IP address, that’s it. No default gateway, DNS servers, etc. BOOTP supports all of this.
What is a relay agent and when it is needed?
A DHCP relay agent is a host or router that forwards DHCP packets between clients and servers. Network administrators can use the DHCP Relay service of the SD-WAN appliances to relay requests and replies between local DHCP Clients and a remote DHCP Server.
Which BOOTP extension specifies the default gateway IP for a client?
DHCP is an extension of the Internet Bootstrap Protocol (BOOTP). DHCP offers a network host a temporary lease rather than an ownership of an IP address. The lease identifies the duration for which the client can safely use its dynamically assigned IP address.
Which layer protocol is BOOTP?
BOOTP (Bootstrap Protocol) is the successor of RARP (Reverse ARP) and the predecessor of DHCP. RARP is a link layer protocol and the problem of RARP is that you can’t route these packets. You need a RARP server on every subnet. BOOTP uses the UDP transport protocol and rides on top of IP so it can be routed.
What port does BOOTP use?
BOOTP uses two different well-known port numbers. UDP port number 67 is used for the server and UDP port number 68 is used for the client.
Why do we need DHCP relay agent?
The DHCP relay agent operates as the interface between DHCP clients and the server. The DHCP Relay Agent relays DHCP messages between DHCP clients and DHCP servers on different IP networks.
What is BOOTP mode?
How does BOOTP protocol work?
BOOTP is a TCP/IP protocol. It allows a client to find its IP address and the name of a load file from a server on the network. A client uses BOOTP to find this information without intervention from the user of the client.
What is BOOTP and how it works?
What is BOOTP relay and how does it work?
The router relays any BOOTP responses it receives to the originator of the BOOTP request. If you do not configure DHCP relay, then BOOTP relay is disabled. The router must wait for an acknowledgment from the DHCP server that the assigned address has been accepted. The IP client must accept an IP address from one of the servers.
Is BOOTP relay not working with FWSM?
For the PIX software 6.3 (3) there is a known bug (ID CSCef27344) that bootp relay does not work. This is the description: Attempting to use the DHCP relay with BOOTP clients. Use full DHCP implementation on the client. Maybe the same bug is contained in the FWSM.
What is DHCP relay in router configuration?
Configuring DHCP relay also enables bootstrap protocol (BOOTP) relay. The router relays any BOOTP requests it receives to the same set of servers that you configured for DHCP relay. A DHCP server can respond to the BOOTP request only if it is also a BOOTP server.
How does a DHCP server respond to a BOOTP request?
A DHCP server can respond to the BOOTP request only if it is also a BOOTP server. The router relays any BOOTP responses it receives to the originator of the BOOTP request. If you do not configure DHCP relay, then BOOTP relay is disabled. The router must wait for an acknowledgment from the DHCP server that the assigned address has been accepted.