Interface not to ping
Hello community,
I have a problem that I just don't understand - although I do not know there is a simple explanation.
R3 can not ping itself on 172.28.38.11/16 and I do not understand why. I appreciate R2 has of an interface on Eth 1/2 with ip address 172.28.38.1/24, but its on a separate router and a different mask.
Can someone please explain what I'm missing here.
Please see newspapers
See you soon
I did lab for you and came up with the same result.
R1 cannot ping interface connected locally because of the longest matching rule:
R1(config-Router) sh ip #do road
Code: C - connected, S - static, mobile R - RIP, M-, B - BGP
D - EIGRP, OSPF, IA - external EIGRP, O - EX - OSPF inter zone
N1 - type external OSPF NSSA 1, N2 - type external OSPF NSSA 2
E1 - OSPF external type 1, E2 - external OSPF of type 2
i - IS - Su - summary IS, L1 - IS - IS level 1, L2 - IS level - 2
-IS inter area, * - candidate failure, U - static route by user
o - ODR, P - periodic downloaded route static
Gateway of last resort is not set
172.13.0.0/24 is divided into subnets, subnets 1
C 172.13.0.0 is directly connected, FastEthernet0/1
10.0.0.0/8 is variably divided into subnets, 3 subnets, 2 masks
10.12.0.0/24 [110/30] by 172.13.0.3, 01:42:38, FastEthernet0/1
C 10.12.0.0/16 is directly connected, FastEthernet0/0
10.23.0.0/24 [110/20] by 172.13.0.3, 01:42:48, FastEthernet0/1
R1(config-Router) #do ping 10.12.0.1
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 10.12.0.1, wait time is 2 seconds:
.....
Success rate is 0% (0/5)
Italic is the locally 10.12.0.0/16 subnet with R1 to 10.12.0.1/16. R2 has 10.12.0.2/24. When you ping 10.12.0.1, the router examines the routing table and the view that 10.12.0.0/24 is the most specific match and tries to send it to R2 Fa0/1.
In addition, you use OSPF, masks of the neighbor must match. You will notice that the interface you are trying to ping is an adjacency with the neighbor on the other side. Thus, the route that must be connected is in fact being learned a different interface because of the mask do not match and no contiguity on this interface.
On the R1 debug ip packet:
* Mar 1 02:53:33.951: IP: tableid = 0, s = 172.13.0.1 (FastEthernet0/0), d = 10.12.0.1 (FastEthernet0/1), routed via RIB
* Mar 1 02:53:33.951: IP: s = 172.13.0.1 (FastEthernet0/0), d = 10.12.0.1 (FastEthernet0/1), g = 172.13.0.3, len 100, forward
* 02:53:33.955 Mar 1: type ICMP = 8, code = 0
I have attached my topology for you to see. Here's my adjacencies:
R1:
Neighbor ID Pri State Dead Time Interface address
172.13.0.3 1 FULL/DR 00:00:34 172.13.0.3 FastEthernet0/1
R2:
Neighbor ID Pri State Dead Time Interface address
172.13.0.3 1 FULL/DR 00:00:32 10.23.0.3 FastEthernet0/1
R3:
Neighbor ID Pri State Dead Time Interface address
10.23.0.2 1 FULL/BDR 10.23.0.2 FastEthernet0/1 00:00:33
172.13.0.1 1 FULL/BDR 172.13.0.1 FastEthernet0/0 00:00:39
So what I did was to create a static route for 10.12.0.1/32 pointing to fa0/1 (172.13.0.1) in R3. Then I created a static route on R2 to R3 10.12.0.1/32. I could do a ping at this time:
R2 #trace 10.12.0.1
Type to abort escape sequence.
The route to 10.12.0.1
1 10.23.0.3 48 ms 36 ms 24 ms
2 172.13.0.1 84 MS * 52 msec
R2 #.
Before doing so, I couldn't do a ping of R2 at 10.12.0.1/32. The reason was once he hit R3, R3 was a road for 10.12.0.0/24 of R2 and referred it back to R2, creating a loop.
Now I can ping R1, but why? R1 sends still to R3 but R3 says now R1 to get back to itself on 172.13.0.1:
R1 #ping 10.12.0.1 rep 2
Type to abort escape sequence.
Send 2, echoes ICMP 100 bytes to 10.12.0.1, wait time is 2 seconds:
!!
Success rate is 100 per cent (2/2), round-trip min/avg/max = 28/48/68 ms
R1 #.
R3 #.
* 03:08:14.523 Mar 1: ICMP: redirect sent to 172.13.0.1 for 10.12.0.1 dest, use gw 172.13.0.1
R3 #.
So, it is definitely the longest matching rule. You can try this to fix yours although I certainly wouldn't do it in production because their no reason really. Put a static route on the host that would be your next hop for the longest subnet (whatever the host is called f0/1). You can put a static on this host for 172.28.38.1/32 pointing to his next jump back to this router. Once you do this, R3 will send a package and it will get returned with a response. It is only a thing of laboratory
HTH,
John
Please note all useful messages *.
Tags: Cisco Network
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Hello
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support for replay detection: Y
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Transform sets = {}
RIGHT,
}
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FastEthernet0/0Router #.
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!
version 12.4
horodateurs service debug datetime msec
Log service timestamps datetime msec
no password encryption service
!
router host name
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boot-start-marker
boot system flash: c2691-adventerprisek9 - mz.124 - 5a .bin
boot-end-marker
!
!
AAA new-model
!
!
AAA authentication login userauthen local
AAA authorization groupauthor LAN
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AAA - the id of the joint session
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resources policy
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IP cef
!
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No dhcp use connected vrf ip
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dhcp VPN IP pool
import all
network 172.18.124.0 255.255.255.0
router by default - 172.18.124.1
lease 5
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
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Fax fax-mail interface type
0 username cisco password Cisco
!
!
!
crypto ISAKMP policy 3
BA 3des
preshared authentication
Group 2
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ISAKMP crypto client configuration group 3000client
key cisco123
DNS 8.8.8.8
domain cisco.com
pool ippool
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map clientmap client to authenticate crypto list userauthen
card crypto clientmap isakmp authorization list groupauthor
client configuration address map clientmap crypto answer
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!
!
!
!
interface FastEthernet0/0
IP 172.18.124.1 255.255.255.0
automatic speed
Half duplex
clientmap card crypto
!
interface Serial0/0
no ip address
Shutdown
!
interface FastEthernet0/1
IP 192.168.10.166 255.255.255.0
automatic speed
Half duplex
!
interface Serial1/0
no ip address
Shutdown
series 0 restart delay
No terminal-dce-enable-calendar
!
interface Serial1/1
no ip address
Shutdown
series 0 restart delay
No terminal-dce-enable-calendar
!
interface Serial1/2
no ip address
Shutdown
series 0 restart delay
No terminal-dce-enable-calendar
!
interface Serial1/3
no ip address
Shutdown
series 0 restart delay
No terminal-dce-enable-calendar
!
IP local pool ippool 14.1.1.100 14.1.1.200
IP route 0.0.0.0 0.0.0.0 192.168.10.1
!
!
IP http server
no ip http secure server
!
TEST extended IP access list
allow an ip
TEST2 extended IP access list
allow an ip
!
!
!
!
!
control plan
!
!
!
!
!
!
Dial-peer cor custom
!
!
!
!
!
!
Line con 0
transportation out all
Speed 115200
line to 0
transportation out all
line vty 0 4
transport of entry all
transportation out all
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endHello
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Past of 512K Cache SRAM
Press
to enter in SETUP--------------------------------------------------------------------------------------------------------------------
To me, it seems that the controller is not fully started. After a reboot, it remains in the State as shown above.
I tried to enter the Setup program, but is not able to join the installer and I have the following message but it is never:
--------------------------------------------------------------------------------------------------------------------
Enter the CONFIGURATION...
--------------------------------------------------------------------------------------------------------------------
Other information:
+ The "PWR OK" LED on the PXI is green fixed.
+ The 'DRIVE' on the PXI system LED is off. This does not blink even during a reboot.
+ Ethernet "10/100" LED on the PXI Green is fixed.
+ Ethernet "Act/link" LED on the PXI constantly flashes orange.
What other things can resolve with my minimal experience with this hardware/software? Is it possible to start in SafeMode PXI or which is available if I can get to the SETUP menu? Do you recommend a reformat of the hard drive? If so, how can I do this and how can I get the application about PXI?
I think that the hard disk on the controller does not have. I know for sure on Monday as I pick up a backup controller.
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Driver Intel management engine interface not supported
I use HP2000-2116TU laptop, installed with WINDOWS (32 bit) operating system 8.1. When I try to install the driver Intel management engine interface, downloaded from the hp Web page, it says that it is incompitable with the system. When I check the Device Manager, it shows pci communications driver is missing. However, driver bluetooth, preferred for my system in HP Web page also is incompitable with WINDOWS 8.1 operating system.
Please give me a solution for this problem.
Details of the problem:
1 PCI device:
The drivers for this device are not installed. (Code 28)
Hardware ID:
PCI\VEN_10EC & DEV_5229 & SUBSYS_1858103C & REV_01
PCI\VEN_10EC & DEV_5229 & SUBSYS_1858103C
PCI\VEN_10EC & DEV_5229 & CC_FF0000
PCI\VEN_10EC & DEV_5229 & CC_FF00Compitable ids:
PCI\VEN_10EC & DEV_5229 & REV_01
PCI\VEN_10EC & DEV_5229
PCI\VEN_10EC & CC_FF0000
PCI\VEN_10EC & CC_FF00
PCI\VEN_10EC
PCI\CC_FF0000
PCI\CC_FF00Hello:
It's the driver who interested, if unfortunately, I don't know why it does not work.
Try to force the installation...
Download and run the file again.
Now, go to Device Manager and click the comms controller simple pci who need the driver.
Click the driver tab. Click on set to update driver. Select her browse my computer for driver software method, then at the bottom of the window, let him choose from a list of drivers for devices on my computer.
Click on disk and navigate to the folder of the driver that was created when you ran the file.
That will be located in C:\SWSetup\sp58464\Drivers\MEI\HECI\and, select the device Intel(r) Management Engine Interface in the list and see if the pilot goes like this.
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interface not registered error code ox80040155
Hi its been 9 03 11 I get error code ox80040155 saying that the interface does not work, but everything was fine before, tried many things but nothing could someone help me please thank you chriswatts17455'hotmail.com
Hello
· When you get this error message?
· This happens with any desktop application?
· What measures have you tried?
· Will there be any changes made prior to this issue?
· Have you tried to do system restore?
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BBMPlatformContextListener interface not found
When I do this step I can not found BBMPlatformContextListener inteface
any help please?
------------------------------------------------------------------
Define a context change listener. The code in step 7 example assumes your context change listener subclass
is named MyBBMPlatformContextChangeListener and that it implements the
Interface BBMPlatformContextListener.will continue in this link...
http://supportforums.BlackBerry.com/T5/Java-development/build-problem/m-p/1819763#M204378
Thank you
-
SCP behind the ASA 5505 may not help ping an internet address,.
There must be a problem of ACL configuration. How to configure the ASA 5505 so that computers
behind an internet can ping 4.2.2.2 such IP address or www.google.com.
Thank you
David
If you have no ACLs on the external interface, please use the following command to allow ICMP through the ASA.
fixup protocol icmp.
So try and ping. Let me know if this helps.
Also, please give us a little more in detail so that we can understand and help you better
See you soon,.
Nash.
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I am really fedUp with code that promise to implement an interface
but in fact is not, and yet always compiles!
in the following code:
ArrayList < String > words =...
words.replaceAll (String::toUpperCase);
Why line 2 compile sucssfuly?
ArrayList.replaceAll takes a < E > UnaryOperator
UnaryOperator < T > {}
T apply (T, t);
}
While String.toUpperCase () implements the UnaryOperator < E > interface, String.toUpperCase () takes no arguments
==================================================================================
in the following code from Oracle tutorials collections: aggregation operations:
// a class to store total value and values count to get the average class Averager implements IntConsumer { int total = 0; int count = 0; public double average() { if(count > 0) return (double)total/count; else return 0; } public void accept(int newVal) { total += newVal; count++; } public void compine(Averager other) { total += other.total; count += other.count; } } // Code in the main class ArrayList<Integer> allVals = new ArrayList<Integer>(); allVals.addAll(Arrays.asList(2, 3, 5, 7, 1, 89, 4, 5)); Averager averageCollect = allVals.stream() .collect(Averager::new, Averager::accept, Averager::compine); System.out.println(averageCollect.average());
Why the code at line 25 compile sucssfuly?
Averager.Accept and Averager.compine does not implement BiConsumer < T, U > Interface
Interface BiConsumer < T, U > {}
void accept (T, t, U u);
}
They both take a single argument?
OK, let's look at in detail in the example
List
words = ... ; words.replaceAll(String::toUpperCase); As you noted, the replaceAll parameter is UnaryOperator
, and String::toUpperCase does not implement this interface. So, how does this work? First, observe that String::toUpperCase is a reference of toUpperCase() method, which is an instance of string method. You can rewrite the reference method as follows, without changing the meaning:
words.replaceAll((String s) -> s.toUpperCase());
I stated the lambda parameter type just to make it clear that it's a chain, but it could just as easily be written as: s-> s.toUpperCase ().
Observe that this lambda expression takes one parameter, a string, and returns a value, a string.
Now let's look at List.replaceAll (). It take a UnaryOperator
parameter. It is an instance method, and the variable E is the type of the list parameter. Words being list , then words.replaceAll () will have a UnaryOperator as its parameter. Now let's look at UnaryOperator. This must be a functional interface, since we provide a lambda here. However, UnaryOperator himself is not all abstract methods. He inherited his unique abstract of its superinterface function method. If we look at the
function, it has a single abstract method R apply(T t)
which means that it takes a parameter of type T and returns a value of type R. Foregoing, we know we need a UnaryOperator
, which extends the function, and the types of the abstract method will be String apply(String t)
It is a method that takes a parameter, a string, and returns a value, a string. But look! That's exactly what the lambda expression
(String s) -> s.toUpperCase()
designated operational entities and the lambda expression is equivalent to
String::toUpperCase
It is so true that the String::toUpperCase, as a method, declare that it implements UnaryOperator
. But we must look at the "forms" of the methods. String::toUpperCase is a reference to a method that takes a string is a parameter and returns a string. And UnaryOperator has one abstract method that takes a string as a parameter and returns a string. That's why String::toUpperCase works in a context where a UnaryOperator is necessary. A wrinkle here is that the toUpperCase() method is an instance method. It seems that it takes no arguments. However, as an instance method, it must be called on an object, the "receiver". The receiver is as a first argument implicit in a method; It's just that from a syntactic point of view, it occurs in a different place. Take the example of Averager:
class Averager { void accept(Integer newVal) { ... } void combine(Averager other) { ... } }
(I've changed around int to take into account the autoboxing).
Here, accept() and combine() are instance methods, so they must be called on an instance of Averager. Which is like an additional implicit for each argument. Thus, accept() takes two arguments: an Averager and an integer and returns no value (empty). For example, Averager.accept () corresponds to BiConsumer
, since his abstract method is accepted (Averager t, all over u). (Note that it is completely irrelevant that Averager.accept has the same method name as BiConsumer.accept).
In addition, combine() takes two arguments, an Averager (receiver) and an another Averager (the parameter as 'other'). Similarly, combine() corresponds to BiConsumer
.
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