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IP Source Guard is functionality of ethernet switches introduced by Cisco company. This functionality allows to block unwanted network traffic form IP addresses which were not assigned by trusted DHCP server. IP source guard requires DHCP snooping functionality of the switch which protects the network against unauthorized DHCP servers connected to the networg by mistake or with malicious intentions. DHCP snooping feature builds the IP database which holds information about ethernet port, mac address and IP address assigned to end point computer.
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What is source ip?
IP Source Guard is functionality of ethernet switches introduced by Cisco company. This functionality allows to block unwanted network traffic form IP addresses which were not assigned by trusted DHCP server. IP source guard requires DHCP snooping functionality of the switch which protects the network against unauthorized DHCP servers connected to the networg by mistake or with malicious intentions. DHCP snooping feature builds the IP database which holds information about ethernet port, mac address and IP address assigned to end point computer.
What ip address will be placed in the source address in an internet pa?
The source address contains the IP address of the computer (or other host) that sends the IP packet.The source address contains the IP address of the computer (or other host) that sends the IP packet.The source address contains the IP address of the computer (or other host) that sends the IP packet.The source address contains the IP address of the computer (or other host) that sends the IP packet.
What is the information contained in the Ip header?
The source and destination IP addresses
What can be indentified by examining the network layer header?
IP Source and IP Destination n
How does a computer identify itself on a network?
The IP Address identifies a PC on a network. Source: I am an IT student in College :)
What function does NAT perform in an ISR?
NAT takes an internal source IP address and translate it to a global IP address.
What Usage of no ip source-route?
I think ip source-route and policy routing very often get confused, but they are two very distinct things. Policy routing is a way of specifying routes to depend on various parameters, including perhaps the source IP address of a packet. It is a local policy applied at a router. ip source-route is something entirely different. It is a feature where the originator of an IP packet specifies, in that packet, which routers the packet must go through to reach its destination. The path is tagged onto the options field of the IP packet. The feature is very dangerous, and most NetAdmins disable it. I think the confusion comes about because of the words "source" and "route".
Which protocol is implicitly denied at the end of an IPv4 access list?
Standard ACLs filter IP packets at the source address only. Extended ACLs filter IP packets based on other protocols including; source and destination IP addresses, source and destination TCP and UDP ports and protocol types (IP, ICMP, UDP, TCP & Protocol No). The protocol that is implicitly denied due to filtration is HTTP.
Wthat Is called when hackers change the source IP addresses on the packets they send so that they appear to be coming from another system?
IP spoofing
Where are ports recorded in an ip based packet?
It's recorded at the top of the IP packet header. 16 bit source and destination port.
On a Cisco router x IP lists check source packet addresses while y IP access lists check for both source and destination packet addresses?
x -> standard y -> extended
What is contained in the header of each segment or datagram?
Source and destination IP address
