ARP Table Access using SNMP

Dear All,
In Cisco Switches and routers we can enable access to the ARP Table using SNMP by using the following commands:
no snmp-server view MibExcluded at excluded (Mac Address Table)
no snmp-server view MibExcluded ip.21 no excluded (Routing Table)
snmp-server view MibExcluded ip.22 excluded (ARP Table)
how i can enable the ASA/FWSM to allow access to the ARP Table using SNMP?
best Regards

The at and ipNetToMediaTable are not supported on the ASA or FWSM. There have been numerous requests for support, but I do not know of an ETA for these objects.
The bug ID for the enhancement request is CSCsq35214.

Similar Messages

Table access using DB link

Hi all,
I have database A and database B. I have a table in A that I want to grant insert access to B. I have a DB link(Blink) created on B. I executed the following statement with errors though. Can someone please advise.
GRANT INSERT, SELECT ON A.table1 TO scott@Blink;

Hi,
SunS wrote:
I have user userB in database B who connects to A. When I execute the following statement, I get an error "user or role userB does not exist"
GRANT INSERT, SELECT ON A.table1 TO userB;Exactly.
Now the question is: What user on database A is associated with that link? When someone on database B uses a link to database A, they connect as some particular user on database A. Who is that user on database A?
Say userB on database B is supposed to do things like this
SELECT ... FROM table1@alink;What did you say after "CONNECT TO" when you created the link? If you don't remember, then, on database B, say
SELECT username
FROM all_db_links
WHERE dblink = 'ALINK';That's the user on database A that needs privileges.

Indx table access using export statement

Hi ,
Can any one help me to resolve this.
we are getting an error in the program enhancement include.
at line no 82 and its job is failing as this is running in back ground.
|>>>>>|
export l_t_zzpstyp to database indx(D7) ID 'IWSZZPSTYP'.
full code
Line |SourceCde
|
| 52|
<fs1> TYPE ANY.
|
| 53|clear:l_t_zzpstyp,l_t_zzwerks,l_t_zzbsakz,
""ST20499/D7AK9A0VR5
|
| 54|
l_wa_zzpstyp,l_wa_zzwerks,l_wa_zzbsakz. ""ST20499/D7AK9A0VR5
|
| 55|IF NOT i_ekko-ekorg IS INITIAL.
|
| 56|
|
| 57| CALL FUNCTION 'Z_EXIT_CHECK_PURCHORG'
|
| 58|
EXPORTING
|
| 59|
ekorg
= i_ekko-ekorg
|
| 60|
exitname
= 'ZXM06U41_D7'
|
| 61|
IMPORTING
|
| 62|
exit_active
= zxm06u41d7_active
|
| 63|
EXCEPTIONS
|
| 64|
exit_not_found = 1
|
| 65|
OTHERS
= 2.
|
| 66| IF sy-subrc = 0 AND zxm06u41d7_active = 'X'.
|
| 67|
|
| 68|*} INSERT
|
| 69|
|
| 70|
DATA: xuekpo LIKE ekpo.
|
| 71|
DATA: xuekko LIKE ekko.
|
| 72|
|
| 73|
CLEAR: xuekpo, xuekko.
|
| 74|*{Begin of change
ST20499/D7AK9A0VR5
|
| 75|
clear:l_t_zzpstyp,l_t_zzwerks,l_t_zzbsakz,
|
| 76|
l_wa_zzpstyp,l_wa_zzwerks,l_wa_zzbsakz.
|
| 77|
xuekpo-pstyp = i_ekpo-pstyp.
|
| 78|
EXPORT zzpstyp = xuekpo-pstyp TO MEMORY ID 'ZZPSTYP'.
|
| 79|*Import ID 'IWSZZPSTYP' in requirement routine RV61B922
|
| 80|
l_wa_zzpstyp-ZZPSTYP = i_ekpo-pstyp.
|
| 81|
append l_wa_zzpstyp to l_t_zzpstyp.
|
|>>>>>|
export l_t_zzpstyp to database indx(D7) ID 'IWSZZPSTYP'.
|
| 83|
|
| 84|
xuekpo-werks = i_ekpo-werks.
|
| 85|
EXPORT zzwerks = xuekpo-werks TO MEMORY ID 'ZZWERKS'.
|
| 86|*Import ID 'IWSZZWERKS' in requirement routine RV61B922
|
| 87|
l_wa_zzwerks-zzwerks = i_ekpo-werks.
|
| 88|
append l_wa_zzwerks to l_t_zzwerks.
|
| 89|
export l_t_zzwerks to database indx(D7) ID 'IWSZZWERKS'.
|
| 90|
|
| 91|
xuekko-bsakz = i_ekko-bsakz.
|
| 92|*{ REPLACE
D7EK905213
2
|
| 93|*\EXPORT ZZBSAKZ = XUEKKO-BSAKZ TO MEMORY ID 'ZZBSAKZ'.
|
| 94|
EXPORT zzbsakz = xuekko-bsakz TO MEMORY ID 'ZZBSAKZ'.
|
| 95|*Import ID 'IWSZZBSAKZ' in requirement routine RV61B922
|
| 96|
l_wa_zzbsakz-zzbsakz = i_ekko-bsakz.
|
| 97|
append l_wa_zzbsakz to l_t_zzbsakz.
|
| 98|
export l_t_zzbsakz to database indx(D7) ID 'IWSZZBSAKZ'.
|
| 99|*}End of change
ST20499/D7AK9A0VR5
|
| 100| ENDIF.
" d7 active
|
| 101|ENDIF. "i_ekko-ekorg populated

Hi,
An error, huh..? Of the "Siri, I have an Abap run time error, what do I do" kind?
Enter %pc in the command field while in dump display, save the dump as text file and attach it to message, please.
cheers
Janis

Clearing the switch CAM using SNMP

How can I clear the Dynamic address table (CAM) using SNMP? There is a check box for this on the WEB interface. It appears that the AAT time does not remove all entries older than that time. I need to do this remotely from software and can't use the WEB interface.
The switch we are using in an SRW208P.
Thanks,
GCL

I suggest contacting Cisco Tech support to further look into your concern. I believe this unit belongs to the business series devices that Cisco is now supporting. Try to go to this link for the other business series devices and the site where you can get hold of Cisco for support:
http://forums.linksysbycisco.com/linksys/board/message?board.id=Switches&message.id=4273&query.id=27...

Using index in a query return few records than full table access

Today we have an issue with a query, when it use the ok index the returned are not all records that apply to where clause condition.
See bellow
explain plan for
select * from movdb.zan_m03 where
M00AF = TO_DATE('11/01/28','YY/MM/DD') AND
M00za = 10 AND
m00AC = 50 AND
M00AD between 136906 and 136999
SELECT * FROM TABLE(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 1882720105
| Id | Operation | Name |
| 0 | SELECT STATEMENT | |
| 1 | TABLE ACCESS BY INDEX ROWID| ZAN_M03 |
|* 2 | INDEX RANGE SCAN | PK_ZAN_M03 |
Predicate Information (identified by operation id):
PLAN_TABLE_OUTPUT
2 - access("M00AF"=TO_DATE('11/01/28','YY/MM/DD') AND "M00ZA"=10 AND
"M00AC"=50 AND "M00AD">=136906 AND "M00AD"<=137141)
filter("M00AD"<=137141 AND "M00AD">=136906)
Note
- rule based optimizer used (consider using cbo)
20 rows selected.
The query above return only one row insted 1579 record that apply to this conditions.
When forcing a full table acess with a hint, the query return all records that apply, the 1579 record.
select /*+ FULL(zan_m03) */ M00AF, M00za, m00AC , M00AD from movdb.zan_m03 where
M00AF = TO_DATE('11/01/28','YY/MM/DD') AND
M00za = 10 AND
m00AC = 50 AND
M00AD between 136906 and 137141
Can you help me to identify what's happening?
I am with Oracle 10g R2 10.2.0.4 standard edition
the statistics are up to date
the opitimizer_mode are rule, but altering in session level to all_rows happens the same issue.
Nothing about corruption in the alert log.
Thanks in advance
Regards
Cristiano

Yes the query are the same and correct restriction for where clause are M00AD between 136906 and 137141.
I've pasted, by mistake, another test query
The corrects are:
select M00AF, M00za, m00AC , M00AD from movdb.zan_m03 where
M00AF = TO_DATE('11/01/28','YY/MM/DD') AND
M00za = 10 AND
m00AC = 50 AND
M00AD between 136906 and 137141
This use pk index and return one row
select /*+ FULL(zan_m03) */ M00AF, M00za, m00AC , M00AD from movdb.zan_m03 where
M00AF = TO_DATE('11/01/28','YY/MM/DD') AND
M00za = 10 AND
m00AC = 50 AND
M00AD between 136906 and 137141
This does a full table access and return 1579 records
I´ve been searching for wrong results bugs on my oracle support, but not found one that mentions something like our issue.
I checked the dba_tables and dba indexes and the number of rows are different, and I think this would be the same because it's is a pk.
Look this
SQL> select NUM_ROWS from dba_tables where table_name = 'ZAN_M03'
2 /
NUM_ROWS
228527878
select NUM_ROWS from dba_indexes where index_name = 'PK_ZAN_M03';
SQL> select NUM_ROWS from dba_indexes where index_name = 'PK_ZAN_M03';
NUM_ROWS
217510185
Is normal a index for pk having much fewer rows than table? I think not, but not sure.
Again
Thanks in advance
Regards
Cristiano

How i can create tables(database) in ms-access using jsp

i want to create tables by using jsp in ms-access .user can only enter
table name ,how many table fields ,constraints etc

You'll get better luck if you post this JDeveloper/ADF/JSF question to the JDeveloper forum.
-steve-

403 Error when access Table Storage using SAS token

I have Azure Mobile Service which has a custom API to generate a sas token for accessing Table Storage from Windows Store app.
I get following error in Windows Store app while accessing table storage using sas token:
Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
Example of sas token generated:
se=2014-09-12T03%3A10%3A00Z&sp=rw&spk=MicrosoftAccount%3A005d92ef08ec5d83081afed1e08641d2&epk=MicrosoftAccount%3A005d92ef08ec5d83081afed1e08641d2&sv=2014-02-14&tn=Folders&sig=91c7S1QM0byNdM80JncwRribXqsWS1iKmOH8cRvHWhQ%3D
Azure Mobile Services API Code that generates sas token:
exports.get = function(request, response) {
var azure = require('azure-storage');
var accountName = 'myAccountName';
var accountKey = 'myAccountKey';
var host = accountName + '.table.core.windows.net';
var tableService = azure.createTableService(accountName, accountKey, host);
var sharedAccessPolicy = {
AccessPolicy: {
Permissions: 'rw', //Read and Write permissions
Expiry: dayFromNow(1),
StartPk: request.user.userId,
EndPk: request.user.userId
var sasToken = tableService.generateSharedAccessSignature('myTableName', sharedAccessPolicy);
response.send(statusCodes.OK, { sasToken : sasToken });
function dayFromNow(days){
var result = new Date();
result.setDate(result.getDate() + days);
return result;
Windows Store app code that uses sas token:
public async Task TestSasApi()
try
var tableEndPoint = "https://myAccount.table.core.windows.net";
var sasToken = await this.MobileService.InvokeApiAsync<Azure.StorageSas>("getsastoken", System.Net.Http.HttpMethod.Get, null);
StorageCredentials storageCredentials = new StorageCredentials(sasToken);
CloudTableClient tableClient = new CloudTableClient(new Uri(tableEndPoint), storageCredentials);
var tableRef = tableClient.GetTableReference("myTableName");
TableQuery query
= new TableQuery().Where(TableQuery.GenerateFilterCondition("PartitionKey",
QueryComparisons.Equal,
this.MobileService.CurrentUser.UserId));
TableQuerySegment seg = await tableRef.ExecuteQuerySegmentedAsync(query, null);
foreach (DynamicTableEntity ent in seg)
string str = ent.ToString();
catch (Exception ex)
string msg = ex.Message;
Exception:
Any help is appreciated.
Thanks in advance!
Thanks, Vinod Shinde

Hi Mekh,
Thanks for the links. I checked them and mostly they are due to date time on client and server.
But this is not the case in this scenario.
here is the Request and Response from Fiddler.
Request:
GET
https://myaccount.table.core.windows.net/Folders?se=2014-09-13T02%3A33%3A26Z&sp=rw&spk=MicrosoftAccount%3A005d92ef08ec5d83081afed1e08641d2&epk=MicrosoftAccount%3A005d92ef08ec5d83081afed1e08641d2&sv=2014-02-14&tn=Folders&sig=YIwVPHb2wRShiyE2cWXV5hHg0p4FwQOGmWBHlN3%2FRO8%3D&api-version=2014-02-14&$filter=PartitionKey%20eq%20%27MicrosoftAccount%3A005d92ef08ec5d83081afed1e08641d2%27
HTTP/1.1
Accept: application/atom+xml, application/xml
Accept-Charset: UTF-8
MaxDataServiceVersion: 2.0;NetFx
x-ms-client-request-id: b5d9ab61-5cff-498f-94e9-437694e9256c
User-Agent: WA-Storage/4.2.1 (Windows Runtime)
Host: todoprime.table.core.windows.net
Response:
HTTP/1.1 403 Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
Content-Length: 437
Content-Type: application/xml
Server: Microsoft-HTTPAPI/2.0
x-ms-request-id: 22c0543b-0002-0049-7337-da39f4000000
Date: Thu, 11 Sep 2014 02:33:28 GMT
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<code>AuthenticationFailed</code>
<message xml:lang="en-US">Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
RequestId:22c0543b-0002-0049-7337-da39f4000000
Time:2014-09-11T02:33:29.6520060Z</message>
</error>
Do you see anything different in this request/response?
Thanks, Vinod Shinde

Access table cells using tab key with iterators

Hi,
I use a tableview with iterator and allow users to mouseclick certain column cells. I capture these user interactions using server event "onCellClick". But I cannot access these cells using tab key instead of mouse click. But tab key is a must for visibly challenged users. Is there any way to access table cells using tab keys (with iterators)?
I use icons in those cells to replace check box and change the icons to differentiate checked/unchecked status.

Hi Craig,
Thanks for your effort.
But I was able to solve my problem. I don't think I gave all the information to simulate my problem in your environment. I used images in certain table cells and was not able to access those cells using tab key or access key. Tag <img> doesn't have the attributes tabindex and access key.
I solved the problem by surrounding the <img> by anchor tag <A>, which has both attributes. I did these changes within the iterator method RENDER_CELL_START using CL_BSP_BEE_TABLE.
In the event handling, I had to do separate processing for mouse click event and key press event for those cells.
For visibly challenged users:
They can access those cells by tab key or access key and the key press event is used to capture when they hit enter key.
So this problem is irrelevant to service packages (SP38,..).

Grab ARP Table via SNMP on HP v1910 switch?

Hello, Just as the topic says, is it possible to grab the ARP table from an HP v1910 switch via SNMP? I'm currently writing a python script that will provide the user IP address to port mappings. Any suggestions are welcome. Thanks in advance!

Hi: You may also want to post your question on the HP Enterprise Business Community support forum -- Procurve Switches section. http://h30499.www3.hp.com/t5/ProCurve-ProVision-Based/bd-p/switching-e-series-forum#.VaKx2ofbLGg

Sending Ciscowrks device credential Verification Job alters the device ARP table.

Hi:
I send a Device credential verification Job to two different devices , a Cisco 3750 and a blade switch WS-CBS3120. I configured SNMP write access to the switches. The SNMP write access in either SNMP v1 or SNMP V3 , tried both.
The job is send from the Ciscoworks server.
Once the job has completed, I do a show ip arp on the device and find a new entry with the IP address of the Ciscoworks Server and the mac-address of the L2 next hop.
We would not have noticed this behavior had it not been that in the case that the switch next hop is an HSRP vlan on a nexus , the ARP entry entered into the switch is incorrect, and from then on the switch loses connection to Ciscoworks.
The Mac-address that is entered by Ciscoworks , in the case of nexus is a statice mac defined on the Nexus for the Vlan in question , but it is NOT the HSRP default gateway MAC address. Therefore we lose connection between the switch and Ciscoworks. One has to manually clear the ARP table inorder to again reach the Ciscoworks.
Questions:
1. Why does Ciscoworks insist on changing the ARP table?
2. Is this ARP entry aged out or is it permeant as would an ARP entry which is entered through CLI be permeant ?
3. In the case of the Nexus connection, this ARP entry does not allow Ciscoworks and the device to communicate. This is not productive!
Has any one come across this situation ? Any known fixes, workarround? I was not able to find a word about this on Cisco's site.
Our Ciscoworks is at the following levels:
CW Common services    3.3.0
LMS portal                    1.2.0
CW Assistent                1.2.0
RME                             4.3.1
Device fault manager      3.2.0
IPM                              4.2.1
Cisco View                    6.1.9
campus Manager            5.2.1
thanks   for any help
Mickey

CiscoWorks does not change the ARP table, at least not overtly. A credential verification job will do the following things depending on what protocols are selected to test:
SNMP RO : Fetches sysLocation.0
SNMP RW : Sets sysLocation.0 to the value currently stored in sysLocation.0
Telnet : Logs in using DCR username and password
SSH : Logs in using DCR username and password
Enable : Enters enable mode and verifies privilege level 15
If one of these things are causing the ARP table to change, then there is something fishy in the device or network configuration. I've never heard of such behavior relating to CiscoWorks before.

ARP table not populating mac address for previously reachable IP address

Router has been online and working fine with one BGP neighbor for almost 2 years and no downtime. 2 weeks ago, added a 2nd BGP peer. Everything worked fine for 2 weeks, then all of a sudden yesterday the 2nd BGP peer is disconnected and does not come back. ISP checks and sees everything looks fine on their end. We cannot even ping each other now.
Upon investigation, the ARP table is not even populating the MAC address for the BGP peer IP anymore (same local subnet). Stays "incomplete" in the table no matter what we do, including clearing arp table, changing IP address, etc.
Plug a laptop directly into the 2nd BGP peer FE port and replicate the IP addressing. Laptop cannot ping Router, but Router CAN ping laptop. Check ARP table, but STILL no mac address assigned and now not even the ARP table showing "incomplete".
Thinking it could be the FE interface, switch to the 2nd FE interface and perform same laptop test, this time with arbitrary IP addressing. Now cannot ping each other, no MAC in ARP table.
End up rebooting the router and lo-and-behold, everything is working normally again. 2nd BGP peer peers up instantly.
I should also mention that the 1st BGP peer worked flawlessly throughout, taking all the Internet load and having no issues throughout.
Also, the FE ports for the 2nd BGP peer are on an HWIC FE card plugged into the router. The 1st BGP peer is plugged into the built-in GE interface. 2901 running: c2900-universalk9-mz.SPA.151-4.M4.bin
Lastly, no router resource issues, no error messages, no logs. Just the BGP peer disconnecting.
I have never, in 20 years working with Cisco routers seen something like this before. This is the most fundamental aspect of IP and Ethernet that was not working.
Has anyone ever seen this behavior before??
Here is the router config (IP's changed):
version 15.1
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service internal
service sequence-numbers
boot-start-marker
boot-end-marker
logging buffered 150000
aaa new-model
aaa authentication login LAUTHEN local
aaa authentication login TAUTHEN local group tacacs+ enable
aaa authorization console
aaa authorization exec LAUTHOR local if-authenticated
aaa authorization exec TAUTHOR local group tacacs+ if-authenticated
aaa session-id common
clock timezone PST -8 0
clock summer-time PDT recurring
no ipv6 cef
no ip source-route
ip cef
no ip domain lookup
multilink bundle-name authenticated
username ubiadmin privilege 15 secret 4 .JbeuWXuZvchrG0OL.5BftFtqrrEyxcnVHn5rIuCnTk
username umitsnoc01 privilege 15 secret 4 cUmoRUjey9O1x.wk9S.kleX.iAAhCwihupr6Z98p6OA
redundancy
ip ssh version 2
track 1 interface GigabitEthernet0/0 line-protocol
class-map match-any AutoQoS-VoIP-RTP-Trust
match access-group name SIP-Media-INBOUND
class-map match-any AutoQoS-VoIP-Control-Trust
match ip dscp cs3
match ip dscp af31
class-map match-any Customer-Voice
match access-group name Customer-VPNs
class-map match-any media
match access-group name SIP-Media
class-map match-any signaling
match access-group name SIP-Signaling
policy-map AutoQoS-Policy-Trust
class AutoQoS-VoIP-RTP-Trust
priority percent 70
class AutoQoS-VoIP-Control-Trust
bandwidth percent 5
class class-default
fair-queue
policy-map queue
class signaling
bandwidth percent 5
class media
priority percent 50
class Customer-Voice
priority percent 40
class class-default
fair-queue
policy-map shape
class class-default
shape average 10000000
service-policy queue
interface Embedded-Service-Engine0/0
no ip address
shutdown
interface GigabitEthernet0/0
description BGP Peer 1
ip address 2.2.2.2 255.255.255.252
no ip redirects
ip flow ingress
ip flow egress
duplex auto
speed auto
service-policy output shape
interface GigabitEthernet0/1
description LAN
ip address 1.2.3.4 255.255.255.0
no ip redirects
ip flow ingress
ip flow egress
standby 255 ip 1.2.3.1
standby 255 priority 105
standby 255 preempt
standby 255 mac-address 1a2b.3c4d.5e6f
standby 255 track 1 decrement 10
duplex auto
speed auto
service-policy output AutoQoS-Policy-Trust
interface FastEthernet0/0/0
description BGP Peer 2
ip address 1.1.1.1 255.255.255.252
ip flow ingress
ip flow egress
duplex full
speed 100
service-policy output shape
interface FastEthernet0/0/1
no ip address
shutdown
duplex auto
speed auto
router bgp 7777
bgp router-id 2.2.2.2
bgp log-neighbor-changes
network 1.2.3.0 mask 255.255.255.0
neighbor 1.1.1.2 remote-as 5555
neighbor 1.1.1.2 update-source FastEthernet0/0/0
neighbor 1.1.1.2 prefix-list L3-DEFGW in
neighbor 1.1.1.2 route-map L3-LPREF-IN in
neighbor 2.2.2.1 remote-as 6666
neighbor 2.2.2.1 ebgp-multihop 2
neighbor 2.2.2.1 update-source GigabitEthernet0/0
neighbor 2.2.2.1 send-community
neighbor 2.2.2.1 prefix-list COLO-DEFGW in
neighbor 2.2.2.1 route-map COLO-LPREF-IN in
neighbor 2.2.2.1 route-map COLO-OUT out
ip forward-protocol nd
ip bgp-community new-format
ip as-path access-list 5 permit _5555_
ip as-path access-list 5 deny .*
ip as-path access-list 10 permit ^6666$
no ip http server
no ip http secure-server
ip flow-top-talkers
top 50
sort-by bytes
ip route 0.0.0.0 0.0.0.0 1.1.1.2 254 name L3
ip route 0.0.0.0 0.0.0.0 2.2.2.1 255 name COLO1
ip route 10.0.0.0 255.0.0.0 10.10.10.10 name FW_OUTSIDE
ip tacacs source-interface GigabitEthernet0/1
ip access-list standard SNMP_SOURCES
permit 12.12.12.0 0.0.0.255
deny any log
ip prefix-list L3-DEFGW seq 5 permit 0.0.0.0/0
ip prefix-list COLO-DEFGW seq 5 permit 0.0.0.0/0
ip prefix-list COLO-LPREF-OUT seq 5 permit 1.2.3.0/24
route-map COLO-LPREF-IN permit 5
match as-path 5
set local-preference 250
route-map COLO-LPREF-IN permit 10
set local-preference 150
route-map COLO-LPREF-IN permit 20
route-map COLO-OUT permit 10
match ip address prefix-list COLO-LPREF-OUT
set as-path prepend 7777 7777 7777
set community 29795:1004
route-map COLO-OUT permit 20
route-map L3-LPREF-IN permit 10
match as-path 10
set local-preference 200
route-map L3-LPREF-IN permit 20
set local-preference 150
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps vrrp
snmp-server enable traps flowmon
snmp-server enable traps transceiver all
snmp-server enable traps ds1
snmp-server enable traps call-home message-send-fail server-fail
snmp-server enable traps tty
snmp-server enable traps license
snmp-server enable traps envmon
snmp-server enable traps ethernet cfm cc mep-up mep-down cross-connect loop config
snmp-server enable traps ethernet cfm crosscheck mep-missing mep-unknown service-up
snmp-server enable traps flash insertion removal
snmp-server enable traps mac-notification
snmp-server enable traps aaa_server
snmp-server enable traps cef resource-failure peer-state-change peer-fib-state-change inconsistency
snmp-server enable traps memory bufferpeak
snmp-server enable traps config-copy
snmp-server enable traps config
snmp-server enable traps config-ctid
snmp-server enable traps event-manager
snmp-server enable traps hsrp
snmp-server enable traps cpu threshold
snmp-server enable traps rsvp
snmp-server enable traps syslog
snmp-server enable traps vtp
snmp-server enable traps ipsla

When you were checking the ARP table was there an entry for Fast0/0/0?
HTH
Rick

LAN - ARP Table

Hello,
I'm not sure if someone has come across this before. But they might enlighten me.
Under what circumstances would you see ARP enteries on a switch for subnets out side of the local subnet?
Example 2 switches back to back everything in default vlan 1. These uplink to a pair of routers running HSRP.
I would expect to see x.x.x.200 /24
arp enteries for devices on the switches
but not addresses outside of this range.
Any input appreciated.
Thank you.

Suppose you are talking layer2 switches like the 2950 series?
First of all, this has nothing to do with the switching process on the access ports. The arp table on a switch is only used for the IP management interface. ARP entries will appear for anything that you contact from the console.
Typically anything beyond your local subnet is covered by a default gateway but when the switch is using proxy-arp for address resolution you can see anything on your network.
Regards,
Leo

Delete ARP table entry

I need to create a program to delete an entry in the ARP table in Windows 7 with LabVIEW or TestStand. The test that I am developing communicates with the DUT over Ethernet. Each DUT has the same IP address to start but different MAC addresses. I am noticing that there can be long delays in the test execution when trying to connect and deleting the previous entry in the ARP table seems to help. But currently I have to do this manually through the command line. The command "arp -d" requires elevated privileges. I have been having a tough time getting LabVIEW to elevate the system exec. Does anybody have an ideas? Is there any .NET access to the ARP table?
Thanks,
Paul
Solved!
Go to Solution.

I would try looking into tuning the ARP timing parameters in Windows.
We suffered from various TCP performance/connection problems some years ago and our solution was to modify the the default number of TCP sockets and timeouts (we were experiencing port exhaustion). The tweeks eliminated most of our problems, no LV/TS code changes required.
I tried to find info on ARP settings for Windows 7, but it seems that there is much less info available than ther is for XP.
The registry keywords most common for older versions of Windows were "ArpCacheLife" and "ArpCacheMinReferencedLife"
EDIT:
These settings were apparently removed in Vista. I found this on the M$ site; they may apply to later versions as well since M$ is following an RFC for ARP management...
http://support.microsoft.com/kb/949589
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MAC-to-IP address ARP table?

The SNMP MIB entry ipNetToMediaPhysAddress gives the MAC address from the ARP table, referenced by the IP. Is there a table available anywhere in some router MIB that would give the equivalent of "MediaPhysAddressToipNet" (reverse) information so that an IP address in the ARP table could be referenced using the MAC address?
RFC1213 section 3.6 alludes to a future document that would define a MIB for CLNP and it would contain two tables for mappings in both directions. But I've not been able to find anything else about that.
I'm trying to avoid pulling the entire ARP table from the router (several thousand entries makes it take about 90 seconds and it drives the CPU to 100%) just to get a single MAC-to-IP address mapping when that info is needed.
--Scott

I haven't run across any such object, and a quick check of my 15.0 router yields nothing I missed.
You might consider doing periodic collection of the ARP table (e.g. when most users are logged into the network) to have a cache through which to search for this kind of information. This is how the Campus Manager User Tracking application works. By default, it polls the ARP table (along with swithc MAC/CAM tables) at 10:00 and 14:00 to build a table of all connected users. From this one can search for IPs, MACs, and even usernames.

WOL and ARP Tables in BT Home Hub 2

Hi,
I have noticed several posts on the forum around the matter of WOL and also using port-forwarding to games devices but have not seen any definitive answer to my question.
I am wanting to use WOL in order to access my home PC from a netbook when away from home without having to leave it on all the time.
I have my PC set up to WOL using WOL Magic Packet Sender and DynDNS. This all works fine until the Home Hub refreshes its ARP table and it no longer finds my PC.
I have managed to set things up so I have a telnet connection to the hub and can run arp -a to see the existing entries. However, whenever I try to do an arp -s inet_addr mac_addr it comes up with Segmentation Error. I have tried deleting all reference to my PC and adding the static entry from my netbook but this gives the same result. I have tried both with DHCP and static addresses in the PC.
Does anyone know if it is possible to set up a permanent ARP entry in the Home Hub, please? BT online support say they are not trained in such matters (after disconnecting me twice) and suggest phoning in for chargeable help.
Cheers,
Joan

I'd like to do this too. I had it set on my previous ISP's Thompson 585v7 router, which is hardly cutting edge so I'd hope it's possible with the Home Hub.

ARP Table Access using SNMP

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