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CCNAS_Chpt0_Firewalls
CCNAS_Chpt0_Firewalls
43
Computer Networking
Undergraduate 3
04/11/2011

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Cards

Term
PIX and ASA
Definition
Cisco's firewall appliances
Term
Connection objects are maintained in what table?
Definition
stateful session flow table
Term
tcp seq numbers are tracked as part of a connection object? T/F
Definition
True
Term
OSFP routing
IDS
VPNs
Failover
VLANs
NAT
SNMP
Cut-thru proxy auth
Packet filtering
EIGRP routing
Definition
funcitons performed by cisco security appliance
Term
to enforce access control policies between networks
Definition
Primary purpose of a firewall
Term
Has a lower security level than another interface
Definition
Untrusted
Term
The mode that permits one to change config
Definition
Configuration mode
Term
Has a higher security level than another interface
Definition
Trusted
Term
Maintains security perimiters between networks
Definition
Adaptive Security Algorithm
Term
Mode that enables one to update an image or perform password recovery
Definition
Monitor mode
Term
Proprietray OS of a cisco security appliance
Definition
Finesse
Term
Mode accessed by entering the enable password, and uses # prompt
Definition
Privileged Mode
Term
Mode that is obtained by accessing the device and uses > prompt
Definition
Unprivleged mode
Term
An interface name that has no automatically assigned securiyt level
Definition
dmz
Term
Interface name that is typically assigned to e0 or fa0
Interface name automatically assigned a security level of 0
Definition
outisde
Term
Interface name automatically assigned a security level of 100
Int name that is typically assigned to e1 or fa1
Definition
inside
Term
A request initiated by an interface with a security level of 90 to an int with a sec level of 40
Definition
permitted
Term
A response to a request from an interface with a security level of 90 to an interface with a security level of 40. (Assume the request was permitted.)
Definition
permitted
Term
A request initiated by an interface with a security level of 50 to an interface with a security level of 60.
Definition
not permitted
Term
A response to a request from an interface with a security level of 40 to an interface with a security level of 90. (Assume the request was permitted.)
Definition
permitted
Term
hostname
Definition
changes name of device
Term
nameif
Definition
creates name for an interface
Term
security-level
Definition
sets a security level for an int
Term
nat-control
Definition
enables NAT
Term
nat
Definition
sets which local addresses may use NAT and from which interfaces
Term
global
Definition
sets which global addresses will be used for NAT and on which interfaces
Term
static
Definition
Sets a specific local to global address translation for a dev
Term
route
Definition
sets a specific static IP route
Term
write terminal
Definition
view running config
Term
write memory
Definition
save running config to startup config
Term
A single response is permitted within a specific timeframe
Definition
how is a udp request handled as a connection object in a CSA
Term
What will happen based on the following NAT statements?
nat-control
global (outside) 1 150.12.16.4 netmask 255.255.255.0
global (dmz) 2 147.16.5.14-147.16.5.20 netmask 255.255.255.0
nat (inside) 1 10.0.0.0 255.255.255.0
Definition
The LAN computers can access the Internet, but not the devices on the dmz.
Term
nat (inside) 0 200.100.50.10 255.255.255.0
Definition
most correct method to config a server to use same inside and outside address
Term
What is the global address for this device after the following command is configured?
static (inside, outside) 200.100.50.10 199.47.41.10 netmask 255.255.255.0
Definition
200.100.50.10
Term
Which of the below best describes what will happen if the following statement is entered on a Cisco security appliance?
route inside 188.31.10.0 255.255.0.0 188.31.10.55 1
Definition
Traffic to the 188.31.10.0/24 subnet will be sent to the fa1 interface and addressed to 188.31.10.55.
Term
TCP
ICMP
IP broadcast
IP unicast
UDP
IP multicast
Definition
supported protocols on CSA
Term
Authenticating users prior to permitting their packets to be sent to any other dev's on the internal networks
Definition
Cut-thru proxy authentication
Term
an advantage to using CSACS and AAA over other authentication servers is?
Definition
It is the only server that can download ACLs on a per-user or per-group basis
Term
whatis the primary purpose of ACLs on a CSA
Definition
To override the default security appliance security level policies on any interface
Term
What is a turbo ACL
Definition
compiled and stored ACL in machine language code to make it faster to use, must be over 19 lines in length
Term
A separate server that tells the firewall whether or not to permit an action based on a URL
Definition
What is a URL filtering server?
Term
The firewall looks at the application level command to be issued inside the packet payload and decides wheterh or not to permit the packet
Definition
deep level inspection
Term
Denying which type of ICMP traffic could impact IPSec VPNs?
Definition
unreachable
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