Archive for the “NAT” Category
Posted by Maurício Bento Ghem in ACL, CCNA, CDP, DHCP, EIGRP, Frame Relay, Labs, NAT, OSPF, RIP, Roteamento, Roteiros de estudo, VLSM  Imprimir este Post
Hello Guys,
Throughout my studies for the CCNA certification, I had many facilities for the practical part. How did the current Cisco Netacad 2002 to 2004 with very good teachers could do much any kind of configuration, troubleshooting and more. All with actual devices.
What I see in some studies of routes for people to study by itself is a lack of practice in the intermediate period of study. In my view, this happens because of the difficulty in setting up scenarios and create from scratch.
In this post, I offer you a ‘package’ laboratories to the Packet Tracer which addresses various concepts by means of various topologies. But best of all is that the laboratory has already guide their goals through the configuration and / or troubleshooting.When you finish setting click Check Results to see the score and get a feedback from your configuration.
Below is the screen of the topology and order.
This package has several laboratories, but those used by me are available on the first link, the folder PT3.2Saves. In the second link, other laboratories are available. Some, besides having the basic file containing the answers made by me.
The file that has all the step by step to open is what is the extent PKA.
Follow the links to download:
Package of Step-by-step Labs for CCNA PT3.2Saves
Package of Step-by-step Labs for CCNA Others
Any questions please contact us.
A big hug and success to all!
Maurício Bentow Ghem.
24 Comments »
Hello Guys,
Based on this laboratory for Frame-relay, I continue the list of commands Show. Now, trying to: routing, OSPF, NAT, and ACL.
Below shows a picture of the topology, and then show the commands based on it.
Topology of the Laboratory of Full-Frame Relay.
| COMMAND |
A RELATED |
RESULT |
| Show ip route |
Routing Table |
Displays the routing table. Shows the network in what was learned (dynamic or static) [administrative distance / metric] and IP and the interface on which this route was learned |
| Show ip protocols |
Routing Protocol |
Displays information from routing protocols running (summary and status). Information is given as specific details of each protocol (eg Router ID for OSPF), and advertising networks that are neighbors (source) routing. |
| Show ip ospf |
OSPF |
Displays the settings set to the OSPF protocol. Displays information such as: Router ID (the highest ID (IP) or the ID defined in the Loopback interface, if any) and timers. |
| show ip ospf data |
OSPF |
Displays now link the IDs, or the ID for each link (interface) has the time in which it was learned (age) and the link ID (ID of the interface of the router) that is advertising the route. |
| Show ip ospf interface <interface> |
OSPF |
Displays all information on each OSPF interface. Information such as IP address, OSPF area, Router ID, type of network (ppp, point-to-multipoint), information on DR / BDR (ppp links to the OSPF not elect DRs), timers and information about neighbors (vicinity). |
| Show ip ospf neighbor |
OSPF |
Presents a summary and status of the adjacency with its neighbors.This command displays information such as neighbor router ID, state (DR, BDR ..), dead time (time until the route goes out, or receives a newhello), IP address of the neighbor and the local router interface which is this neighbor. |
| Show ip nat translations |
NAT |
Displays NAT translations made and information such as protocol,inside global, outside local, and local and global. |
| Show ip Nat statistics |
NAT |
Displays statistics for NAT translation. |
| Show ip access-lists |
ACLs |
Displays IP ACLs all created and the number of matches (how many times it was applied). |
Commands:
R_NH#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 172.16.1.1 to network 0.0.0.0
172.16.0.0/30 is subnetted, 3 subnets
C 172.16.1.0 is directly connected, Serial0/0.101
O 172.16.2.0 [110/3570] via 172.16.1.1, 00:01:05, Serial0/0.101
O 172.16.3.0 [110/3570] via 172.16.1.1, 00:01:05, Serial0/0.101
C 192.168.20.0/24 is directly connected, FastEthernet0/0
O 192.168.30.0/24 [110/3571] via 172.16.1.1, 00:01:05, Serial0/0.101
O 192.168.40.0/24 [110/3571] via 172.16.1.1, 00:01:05, Serial0/0.101
O*E2 0.0.0.0/0 [110/1] via 172.16.1.1, 00:01:05, Serial0/0.101
R_Matriz#show ip protocols
Routing Protocol is “ospf 20?
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 201.0.0.2
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
172.16.1.0 0.0.0.3 area 0
172.16.2.0 0.0.0.3 area 0
172.16.3.0 0.0.0.3 area 0
Routing Information Sources:
Gateway Distance Last Update
172.16.1.2 110 00:16:43
172.16.2.2 110 00:16:43
172.16.3.2 110 00:16:43
Distance: (default is 110)
00:16:43 R_Matriz#show ip protocols
Routing Protocol is “ospf 20?
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 201.0.0.2
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
172.16.1.0 0.0.0.3 area 0
172.16.2.0 0.0.0.3 area 0
172.16.3.0 0.0.0.3 area 0
Routing Information Sources:
Gateway Distance Last Update
172.16.1.2 110 00:16:43
172.16.2.2 110 00:16:43
172.16.3.2 110 00:16:43
Distance: (default is 110)
00:16:43 R_Matriz#show ip protocols
Routing Protocol is “ospf 20?
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 201.0.0.2
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
172.16.1.0 0.0.0.3 area 0
172.16.2.0 0.0.0.3 area 0
172.16.3.0 0.0.0.3 area 0
Routing Information Sources:
Gateway Distance Last Update
172.16.1.2 110 00:16:43
172.16.2.2 110 00:16:43
172.16.3.2 110 00:16:43
Distance: (default is 110)
00:16:43 R_Matriz#show ip protocols
Routing Protocol is “ospf 20?
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 201.0.0.2
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
172.16.1.0 0.0.0.3 area 0
172.16.2.0 0.0.0.3 area 0
172.16.3.0 0.0.0.3 area 0
Routing Information Sources:
Gateway Distance Last Update
172.16.1.2 110 00:16:43
172.16.2.2 110 00:16:43
172.16.3.2 110 00:16:43
Distance: (default is 110)
R_Matriz#show ip ospf
Routing Process “ospf 20? with ID 201.0.0.2
Supports only single TOS(TOS0) routes
Supports opaque LSA
SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs
Number of external LSA 1. Checksum Sum 0×00f80e
Number of opaque AS LSA 0. Checksum Sum 0×000000
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
External flood list length 0
Area BACKBONE(0)
Number of interfaces in this area is 3
Area has no authentication
SPF algorithm executed 2 times
Area ranges are
Number of LSA 4. Checksum Sum 0×021d3a
Number of opaque link LSA 0. Checksum Sum 0×000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
R_Matriz#show ip ospf data
OSPF Router with ID (201.0.0.2) (Process ID 20)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
192.168.20.1 192.168.20.1 379 0x80000003 0x00d1a1 3
201.0.0.2 201.0.0.2 379 0x80000007 0x000857 6
192.168.40.1 192.168.40.1 379 0x80000003 0x0091a1 3
192.168.30.1 192.168.30.1 379 0x80000003 0x00b1a1 3
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 201.0.0.2 389 0x80000001 0x00f80e 1
R_NH#show ip ospf interface
FastEthernet0/0 is up, line protocol is up
Internet address is 192.168.20.1/24, Area 0
Process ID 20, Router ID 192.168.20.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.20.1, Interface address 192.168.20.1
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:01
Index 1/1, flood queue length 0
Next 0×0(0)/0×0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Serial0/0.101 is up, line protocol is up
Internet address is 172.16.1.2/30, Area 0
Process ID 20, Router ID 192.168.20.1, Network Type POINT-TO-POINT, Cost: 1785
Transmit Delay is 1 sec, State POINT-TO-POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:01
Index 2/2, flood queue length 0
Next 0×0(0)/0×0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 172.16.1.1
Suppress hello for 0 neighbor(s)
R_Matriz#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
192.168.20.1 1 FULL/- 00:00:37 172.16.1.2 Serial0/0.100
192.168.30.1 1 FULL/- 00:00:37 172.16.2.2 Serial0/0.200
192.168.40.1 1 FULL/- 00:00:37 172.16.3.2 Serial0/0.300
R_Matriz#show ip nat translations
Pro Inside global Inside local Outside local Outside global
icmp 201.0.0.2:3 192.168.40.3:3 200.213.1.2:3 200.213.1.2:3
tcp 201.0.0.2:1025 192.168.20.3:1025 200.213.1.1:23 200.213.1.1:23
R_Matriz#show ip nat statistics
Total translations: 1 (0 static, 1 dynamic, 1 extended)
Outside Interfaces: Serial0/1
Inside Interfaces: Serial0/0.100 , Serial0/0.200 , Serial0/0.300
Hits: 8 Misses: 4
Expired translations: 3
Dynamic mappings:
R_Matriz#show ip access-lists
Standard IP access list 1
permit 172.16.1.0 0.0.0.3
permit 172.16.2.0 0.0.0.3
permit 172.16.3.0 0.0.0.3
permit 192.168.20.0 0.0.0.255 (2 match(es))
permit 192.168.30.0 0.0.0.255
permit 192.168.40.0 0.0.0.255 (6 match(es))
Abrasive,
And success to all.
References:
- Filippeti, M. - “CCNA 4.1 - Complete Study Guide, Visual Books/2008.
- Cisco NetAcademy, Academy Connection. “Cisco Study Material official.” <http://cisco.netacad.net>. Acesso em: 02/03/2008.
Comments Off
Hello Guys,
It is with great pleasure that I am posting this complete lab, developed to the satisfaction txt files including the configuration of each router and switch, Frame Relay and Packet Tracer file.
Continuing.
This laboratory consists of a matrix that provides internet to the other branches each connected by a link point-to-point to this, as in figure below:
Topology of the Laboratory of Full-Frame Relay.
Download Full of Lab-Frame Relay
Download Laboratory of Frame-Relay OSPF Routing Protocol using NEW
The artifacts implemented in this laboratory:
- Creating Frame-Relay cloud allowing a virtual circuit in the link layer.
- Uses the protocol to EIGRP redistribution of enabling a default route complete communication throughout the mesh.
- Used with NAT Overload (PAT) allowing access to ‘Internet’.
The following artifacts could have been implemented to further illustrate a more realistic scenario and organizational:
- DHCP service to provide to the matrix hosts (PCs) assigned IPs dynamically.
- DNS service in the matrix providing translation of names.
Items to enjoy in this laboratory:
- How the Frame-relay encapsulates the frames (frames) and understand the role of cloud and the various components.
- Check the learning of the EIGRP routes through the various show commands available.
- Check the surroundings using the protocol CDP (Cisco Discovery Protocol).
- Check the settings for each of the equipment (Switch, Frame Relay, Routing Matrix and the Subsidiaries).
- Absorb the concepts after this lab.
- And do not forget, creativity is the limit. Modify, ask and let me know what you think of this laboratory.
I personally believe that is. I hope you enjoy the lab, because I am.
As my goal is to get the CCNA, this lab includes various interesting concepts in a case about the real world.
A Abrasive,
Maurício.
6 Comments »
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