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Web Development »
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Network
Intermediate License: The Code Project Open License (CPOL)
Edit (Add/Remove/Modify) ARP TableBy Usama El-MokademA tool to displays and modifies the IP-to-Physical address translation tables used by address resolution protocol (ARP) |
C++ (VC6, VC8.0, C++), Windows (Windows, Win2K, WinXP, Win2003), Win32, MFC Posted: 27 Dec 2007 Updated: 18 Jan 2008 Views: 23,531 |
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Note: This is an unedited contribution. If this article is inappropriate,
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Introduction
This is a tool to displays and modifies the IP-to-Physical address translation tables used by ARP (Address Resolution Protocol), like as Windows command-line arp.exe.
This tool will do two things. One is displays ARP tables' entries and the other is adds/modifies/removes ARP entries, the two things done by requesting SNMP (Simple Network Management Protocol) extension library.
Access IP and MAC addresses through SNMP
You can read and modifies ARP table through SNMP, by requesting SNMP to get/set object information. SNMP do requests and responses through MIB (Management Information Base). MIB like as tree, MIB have all manageable objects we will use, for more information RFC1213, also check the files at %SystemRoot%\system32\*.mib, the file have entries we will use is %SystemRoot%\system32\mib_ii.mib you can open and see it by notepad.exe.
Here is an MIB ipNetToMediaEntry entry:
ipNetToMediaEntry OBJECT-TYPE SYNTAX IpNetToMediaEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "Each entry contains one IpAddress to 'physical' address equivalence." INDEX { ipNetToMediaIfIndex, ipNetToMediaNetAddress } ::= { ipNetToMediaTable 1 }
MIB access the objects by OID (Object Identifier) number. Every object have a number, and also child objects have the both parent object number and its own number, The numbers separated by dot ".". For example if parent object have number "1" and child object have number "3", then the child object OID number is "1.3", and child of child may be "1.3.6", … "1.3.6.1.2.1", and so on.
Here is simple sketch for objects tree:
Initialize the class
I used the function SnmpExtensionQuery to resolve SNMP requests, but before using it, you must call the SnmpExtensionInit function to initialize the SNMP extension agent DLL. The two functions exists in Microsoft library inetmib1.dll, so at the class construction I will load the this library and get the addresses of these functions, then call SnmpExtensionInit initialize the SNMP extension agent DLL.
Here is a construction of an CARP class:
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CARP::CARP()
{
// Load dynamic library: inetmib1.dll
hMIBLibrary = LoadLibrary(TEXT("inetmib1.dll"));
// If library loaded, get addresses of (SnmpExtensionInit, pfnSnmpExtensionQuery) functions
if (hMIBLibrary)
{
pfnSnmpExtensionInit = (PFNSNMPEXTENSIONINIT) GetProcAddress(hMIBLibrary, "SnmpExtensionInit");
pfnSnmpExtensionQuery = (PFNSNMPEXTENSIONQUERY) GetProcAddress(hMIBLibrary, "SnmpExtensionQuery");
// If success get addresses and initialize SNMP, bInitialized = true
if (pfnSnmpExtensionInit && pfnSnmpExtensionQuery)
{
HANDLE hPollForTrapEvent;
AsnObjectIdentifier aoiSupportedView;
bInitialized = pfnSnmpExtensionInit(0, &hPollForTrapEvent, &aoiSupportedView);
}
}
else
{
// If fail to get addresses, bInitialized = false
bInitialized = FALSE;
AfxMessageBox(_T("Load library fail"));
}
}
Get ARP entries
The function GetEntries get ARP entries like as arp.exe -a, it take 3 Parameters: pTable Pointer to array of arpTable struct that will filled by IP and MAC addresses TableLength Length of the array AdapterIndex NIC Adapter index number I'm used 3 OIDs to get ARP table entries: OID[0] = "1.3.6.1.2.1.4.22.1.1", to get the interface index of the entry, and compare it with AdapterIndex parameter OID[1] = "1.3.6.1.2.1.4.22.1.2", to get the IP and MAC addresses OID[2] = "1.3.6.1.2.1.4.22.1.4", to get the entry type (Static or Dynamic)
//-----------------------------------------------------------------------
// Function: GetEntries: Read ARP table for specific NIC interface.
//
// Parameters:
// pTable Pointer to array of arpTable struct
// TableLength Length of the array
// AdapterIndex NIC Adapter index number
//
// Returns:
// Number of read ARP entries
//-----------------------------------------------------------------------
int CARP::GetEntries(arpTable* pTable, int TableLength, int AdapterIndex)
{
// Be sure initialize SNMP true
if (!bInitialized)
return 0;
SnmpVarBindList SVBList[3];
SnmpVarBind SVBVars[3];
UINT OID[3][10];
AsnInteger32 aiErrorStatus[3], aiErrorIndex[3];
AsnObjectIdentifier AsnOID0 = {sizeof(OID[0])/sizeof(UINT), OID[0]};
AsnObjectIdentifier AsnOID1 = {sizeof(OID[1])/sizeof(UINT), OID[1]};
AsnObjectIdentifier AsnOID2 = {sizeof(OID[2])/sizeof(UINT), OID[2]};
unsigned long pIPAddress;
unsigned long pMACAddress;
int iEntries;
//-----------------------------------------------------------------------
// Fill array of 3 OIDs
//
// OID[0] : "1.3.6.1.2.1.4.22.1.1", ipNetToMediaIfIndex
// The interface on which this entry's equivalence is effective
//
// OID[1] : "1.3.6.1.2.1.4.22.1.2", ipNetToMediaPhysAddress
// The media-dependent 'physical' address
//
// OID[2] : "1.3.6.1.2.1.4.22.1.4", ipNetToMediaType
// Entry type: 1:Other, 2:Invalid(Remove), 3:Dynamic, 4:Static
//
for (int count=0; count<3; count++)
{
OID[count][0] = 1;
OID[count][1] = 3;
OID[count][2] = 6;
OID[count][3] = 1;
OID[count][4] = 2;
OID[count][5] = 1;
OID[count][6] = 4;
OID[count][7] = 22;
OID[count][8] = 1;
switch(count)
{
case 0:
// Adapter interface
OID[count][9] = 1;
break;
case 1:
// MAC address
OID[count][9] = 2;
break;
case 2:
// Entry Type
OID[count][9] = 4;
break;
}
}
ZeroMemory(pTable, sizeof(arpTable)*TableLength);
SVBList[0].len = 1;
SVBList[0].list = &SVBVars[0];
SnmpUtilOidCpy(&SVBVars[0].name, &AsnOID0);
SVBList[1].len = 1;
SVBList[1].list = &SVBVars[1];
SnmpUtilOidCpy(&SVBVars[1].name, &AsnOID1);
SVBList[2].len = 1;
SVBList[2].list = &SVBVars[2];
SnmpUtilOidCpy(&SVBVars[2].name, &AsnOID2);
iEntries = 0;
do
{
aiErrorStatus[0] = 0;
aiErrorIndex[0] = 0;
aiErrorStatus[1] = 0;
aiErrorIndex[1] = 0;
aiErrorStatus[2] = 0;
aiErrorIndex[2] = 0;
// Query information of 3 OIDs
if (pfnSnmpExtensionQuery(SNMP_PDU_GETNEXT, &SVBList[0], &aiErrorStatus[0], &aiErrorIndex[0]))
if (pfnSnmpExtensionQuery(SNMP_PDU_GETNEXT, &SVBList[1], &aiErrorStatus[1], &aiErrorIndex[1]))
if (pfnSnmpExtensionQuery(SNMP_PDU_GETNEXT, &SVBList[2], &aiErrorStatus[2], &aiErrorIndex[2]))
if (aiErrorStatus[0] == SNMP_ERRORSTATUS_NOERROR &&
aiErrorStatus[1] == SNMP_ERRORSTATUS_NOERROR &&
aiErrorStatus[2] == SNMP_ERRORSTATUS_NOERROR) // Check for error
{
//-----------------------------------------------------------------------
// From MSDN Help: http://msdn2.microsoft.com/en-us/library/aa378021.aspx
//
// If the extension agent cannot resolve the variable bindings on a Get Next request,
// it must change the name field of the SnmpVarBind structure to the value of the object
// identifier immediately following that of the currently supported MIB subtree view.
// For example, if the extension agent supports view ".1.3.6.1.4.1.77.1", a Get Next
// request on ".1.3.6.1.4.1.77.1.5.1" would result in a modified name field of ".1.3.6.1.4.1.77.2".
// This signals the SNMP service to continue the attempt to resolve the variable bindings
// with other extension agents
//-----------------------------------------------------------------------
if(SnmpUtilOidNCmp(&SVBVars[0].name, &AsnOID0, AsnOID0.idLength))
break;
if(SnmpUtilOidNCmp(&SVBVars[1].name, &AsnOID1, AsnOID1.idLength))
break;
if(SnmpUtilOidNCmp(&SVBVars[2].name, &AsnOID2, AsnOID2.idLength))
break;
// Verify selected Adapter interface
if (AdapterIndex == SVBList[0].list->value.asnValue.number)
{
// pIPAddress get pointer ro IP Address
pIPAddress = (unsigned long)SVBList[1].list->name.ids;
pTable[iEntries].IPAddress[0] = *(unsigned char *)(pIPAddress + 44);
pTable[iEntries].IPAddress[1] = *(unsigned char *)(pIPAddress + 48);
pTable[iEntries].IPAddress[2] = *(unsigned char *)(pIPAddress + 52);
pTable[iEntries].IPAddress[3] = *(unsigned char *)(pIPAddress + 56);
// pIPAddress get pointer ro MAC Address
pMACAddress = (unsigned long)SVBList[1].list->value.asnValue.string.stream;
if (pMACAddress)
{
pTable[iEntries].MACAddress[0] = *(unsigned char *)(pMACAddress + 0);
pTable[iEntries].MACAddress[1] = *(unsigned char *)(pMACAddress + 1);
pTable[iEntries].MACAddress[2] = *(unsigned char *)(pMACAddress + 2);
pTable[iEntries].MACAddress[3] = *(unsigned char *)(pMACAddress + 3);
pTable[iEntries].MACAddress[4] = *(unsigned char *)(pMACAddress + 4);
pTable[iEntries].MACAddress[5] = *(unsigned char *)(pMACAddress + 5);
}
// Entry Type
pTable[iEntries].Type = (unsigned long)SVBList[2].list->value.asnValue.number;
// Type must be one of (1, 2, 3, 4)
if (pTable[iEntries].Type>=1 && pTable[iEntries].Type<=4)
iEntries++; // Move to next array position
}
}
else
break; // If error exit do-while
}
while(iEntries < TableLength);
// Frees the memory allocated for the specified object identifiers
SnmpUtilOidFree(&SVBVars[2].name);
SnmpUtilOidFree(&SVBVars[1].name);
SnmpUtilOidFree(&SVBVars[0].name);
return iEntries; // Return number of Entries
}
Edit ARP entries
The function EditEntry adds/modifies/removes ARP entries, add dynamic entry like asarp.exe 1.2.3.4 11-22-33-44-55-66, static entry like as arp.exe –s 1.2.3.4 11-22-33-44-55-66, or remove entry like as arp.exe –d 1.2.3.4. When you add a new entry, if entry IP address not exists in the ARP table, the entry will be added at table, else if the entry IP address already exists in the ARP table, the entry will be update. To remove entry you need only IP address to identify the entry on the NIC interface, MAC address not needed in remove operation, the function take 4 Parameters: IPAddress Array of 4 BYTES, 4 octs of IP Address MACAddress Array of 4 BYTES, 6 octs of MAC Address Type Entry type (2:Remove, 3:Dynamic, 4:Static) AdapterIndex NIC Adapter index number I'm used 4 OIDs to set ARP table entries: OID[0] = "1.3.6.1.2.1.4.22.1.1", to set the interface index of the entry OID[1] = "1.3.6.1.2.1.4.22.1.2", to set MAC address OID[3] = "1.3.6.1.2.1.4.22.1.3", to set IP address OID[2] = "1.3.6.1.2.1.4.22.1.4", to set the entry type (Static or Dynamic), or Remove entry
//-----------------------------------------------------------------------
// Function: EditEntry: Add/Modify/Remove ARP entry for specific NIC interface.
//
// Parameters:
// IPAddress Array of 4 BYTES, 4 octs of IP Address
// MACAddress Array of 4 BYTES, 6 octs of MAC Address
// Type Entry type (2:Remove, 3:Dynamic, 4:Static)
// AdapterIndex NIC Adapter index number
//
// Returns:
// TRUE if set successfully, FALSE otherwise.
//-----------------------------------------------------------------------
BOOL CARP::EditEntry(unsigned char IPAddress[4], unsigned char MACAddress[6], unsigned long Type, int AdapterIndex)
{
if (!bInitialized)
return 0;
SnmpVarBindList SVBList;
SnmpVarBind SVBVars[4];
UINT OID[4][10];
AsnInteger32 aiErrorStatus, aiErrorIndex;
BOOL bReturn = FALSE;
//-----------------------------------------------------------------------
// Fill array of 4 OIDs
//
// OID[0] : "1.3.6.1.2.1.4.22.1.1", ipNetToMediaIfIndex
// The interface on which this entry's equivalence is effective
//
// OID[1] : "1.3.6.1.2.1.4.22.1.2", ipNetToMediaPhysAddress
// The media-dependent 'physical' address
//
// OID[2] : "1.3.6.1.2.1.4.22.1.3", ipNetToMediaNetAddress
// The IpAddress corresponding to the media-dependent 'physical' address
//
// OID[3] : "1.3.6.1.2.1.4.22.1.4", ipNetToMediaType
// Entry type: 1:Other, 2:Invalid(Remove), 3:Dynamic, 4:Static
//-----------------------------------------------------------------------
for (int count=0; count<4; count++)
{
OID[count][0] = 1;
OID[count][1] = 3;
OID[count][2] = 6;
OID[count][3] = 1;
OID[count][4] = 2;
OID[count][5] = 1;
OID[count][6] = 4;
OID[count][7] = 22;
OID[count][8] = 1;
OID[count][9] = 1 + count;
switch(count)
{
case 0:
// OID[0] : "1.3.6.1.2.1.4.22.1.1", ipNetToMediaIfIndex
// The interface on which this entry's equivalence is effective
SVBVars[count].value.asnType = ASN_INTEGER;
SVBVars[count].value.asnValue.number = AdapterIndex;
break;
case 1:
// OID[1] : "1.3.6.1.2.1.4.22.1.2", ipNetToMediaPhysAddress
// The media-dependent 'physical' address
SVBVars[count].value.asnType = ASN_OCTETSTRING;
SVBVars[count].value.asnValue.string.stream = MACAddress;
SVBVars[count].value.asnValue.string.length = 6; // MAC Address length
SVBVars[count].value.asnValue.string.dynamic= FALSE;
break;
case 2:
// OID[2] : "1.3.6.1.2.1.4.22.1.3", ipNetToMediaNetAddress
// The IpAddress corresponding to the media-dependent 'physical' address
SVBVars[count].value.asnType = ASN_IPADDRESS;
SVBVars[count].value.asnValue.string.stream = IPAddress;
SVBVars[count].value.asnValue.string.length = 4; // IP Address length
SVBVars[count].value.asnValue.string.dynamic= FALSE;
break;
case 3:
// OID[3] : "1.3.6.1.2.1.4.22.1.4", ipNetToMediaType
// Entry type: 2:Remove, 3:Dynamic, 4:Static
SVBVars[count].value.asnType = ASN_INTEGER;
SVBVars[count].value.asnValue.number = Type;
break;
}
AsnObjectIdentifier AsnOID = {sizeof(OID[count])/sizeof(UINT), OID[count]};
SnmpUtilOidCpy(&SVBVars[count].name, &AsnOID);
}
SVBList.len = 4;
SVBList.list = SVBVars;
aiErrorStatus = 0;
aiErrorIndex = 0;
// Set information of entry (4 OIDs)
if (pfnSnmpExtensionQuery(SNMP_PDU_SET, &SVBList, &aiErrorStatus, &aiErrorIndex))
if (aiErrorStatus == SNMP_ERRORSTATUS_NOERROR)
bReturn = TRUE; // If success set bReturn = true
// Frees the memory allocated for the specified object identifiers
SnmpUtilOidFree(&SVBVars[3].name);
SnmpUtilOidFree(&SVBVars[2].name);
SnmpUtilOidFree(&SVBVars[1].name);
SnmpUtilOidFree(&SVBVars[0].name);
return bReturn; // TRUE if set successfully, FALSE otherwise.
}
Also you can use the same way with suitable OIDs to adds/modifies/removes route table information, see some of RFC1213 identifiers:
mib-2 node 1.3.6.1.2.1 system node 1.3.6.1.2.1.1 sysDescr scalar 1.3.6.1.2.1.1.1 sysObjectID scalar 1.3.6.1.2.1.1.2 sysUpTime scalar 1.3.6.1.2.1.1.3 sysContact scalar 1.3.6.1.2.1.1.4 sysName scalar 1.3.6.1.2.1.1.5 sysLocation scalar 1.3.6.1.2.1.1.6 sysServices scalar 1.3.6.1.2.1.1.7 interfaces node 1.3.6.1.2.1.2 ifNumber scalar 1.3.6.1.2.1.2.1 ifTable table 1.3.6.1.2.1.2.2 ifEntry row 1.3.6.1.2.1.2.2.1 ifIndex column 1.3.6.1.2.1.2.2.1.1 ifDescr column 1.3.6.1.2.1.2.2.1.2 ifType column 1.3.6.1.2.1.2.2.1.3 ifMtu column 1.3.6.1.2.1.2.2.1.4 ifSpeed column 1.3.6.1.2.1.2.2.1.5 ifPhysAddress column 1.3.6.1.2.1.2.2.1.6 ifAdminStatus column 1.3.6.1.2.1.2.2.1.7 ifOperStatus column 1.3.6.1.2.1.2.2.1.8 ifLastChange column 1.3.6.1.2.1.2.2.1.9 ifInOctets column 1.3.6.1.2.1.2.2.1.10 ifInUcastPkts column 1.3.6.1.2.1.2.2.1.11 ifInNUcastPkts column 1.3.6.1.2.1.2.2.1.12 ifInDiscards column 1.3.6.1.2.1.2.2.1.13 ifInErrors column 1.3.6.1.2.1.2.2.1.14 ifInUnknownProtos column 1.3.6.1.2.1.2.2.1.15 ifOutOctets column 1.3.6.1.2.1.2.2.1.16 ifOutUcastPkts column 1.3.6.1.2.1.2.2.1.17 ifOutNUcastPkts column 1.3.6.1.2.1.2.2.1.18 ifOutDiscards column 1.3.6.1.2.1.2.2.1.19 ifOutErrors column 1.3.6.1.2.1.2.2.1.20 ifOutQLen column 1.3.6.1.2.1.2.2.1.21 ifSpecific column 1.3.6.1.2.1.2.2.1.22 at node 1.3.6.1.2.1.3 atTable table 1.3.6.1.2.1.3.1 atEntry row 1.3.6.1.2.1.3.1.1 atIfIndex column 1.3.6.1.2.1.3.1.1.1 atPhysAddress column 1.3.6.1.2.1.3.1.1.2 atNetAddress column 1.3.6.1.2.1.3.1.1.3 ip node 1.3.6.1.2.1.4 ipForwarding scalar 1.3.6.1.2.1.4.1 ipDefaultTTL scalar 1.3.6.1.2.1.4.2 ipInReceives scalar 1.3.6.1.2.1.4.3 ipInHdrErrors scalar 1.3.6.1.2.1.4.4 ipInAddrErrors scalar 1.3.6.1.2.1.4.5 ipForwDatagrams scalar 1.3.6.1.2.1.4.6 ipInUnknownProtos scalar 1.3.6.1.2.1.4.7 ipInDiscards scalar 1.3.6.1.2.1.4.8 ipInDelivers scalar 1.3.6.1.2.1.4.9 ipOutRequests scalar 1.3.6.1.2.1.4.10 ipOutDiscards scalar 1.3.6.1.2.1.4.11 ipOutNoRoutes scalar 1.3.6.1.2.1.4.12 ipReasmTimeout scalar 1.3.6.1.2.1.4.13 ipReasmReqds scalar 1.3.6.1.2.1.4.14 ipReasmOKs scalar 1.3.6.1.2.1.4.15 ipReasmFails scalar 1.3.6.1.2.1.4.16 ipFragOKs scalar 1.3.6.1.2.1.4.17 ipFragFails scalar 1.3.6.1.2.1.4.18 ipFragCreates scalar 1.3.6.1.2.1.4.19 ipAddrTable table 1.3.6.1.2.1.4.20 ipAddrEntry row 1.3.6.1.2.1.4.20.1 ipAdEntAddr column 1.3.6.1.2.1.4.20.1.1 ipAdEntIfIndex column 1.3.6.1.2.1.4.20.1.2 ipAdEntNetMask column 1.3.6.1.2.1.4.20.1.3 ipAdEntBcastAddr column 1.3.6.1.2.1.4.20.1.4 ipAdEntReasmMaxSize column 1.3.6.1.2.1.4.20.1.5 ipRouteTable table 1.3.6.1.2.1.4.21 ipRouteEntry row 1.3.6.1.2.1.4.21.1 ipRouteDest column 1.3.6.1.2.1.4.21.1.1 ipRouteIfIndex column 1.3.6.1.2.1.4.21.1.2 ipRouteMetric1 column 1.3.6.1.2.1.4.21.1.3 ipRouteMetric2 column 1.3.6.1.2.1.4.21.1.4 ipRouteMetric3 column 1.3.6.1.2.1.4.21.1.5 ipRouteMetric4 column 1.3.6.1.2.1.4.21.1.6 ipRouteNextHop column 1.3.6.1.2.1.4.21.1.7 ipRouteType column 1.3.6.1.2.1.4.21.1.8 ipRouteProto column 1.3.6.1.2.1.4.21.1.9 ipRouteAge column 1.3.6.1.2.1.4.21.1.10 ipRouteMask column 1.3.6.1.2.1.4.21.1.11 ipRouteMetric5 column 1.3.6.1.2.1.4.21.1.12 ipRouteInfo column 1.3.6.1.2.1.4.21.1.13 ipNetToMediaTable table 1.3.6.1.2.1.4.22 ipNetToMediaEntry row 1.3.6.1.2.1.4.22.1 ipNetToMediaIfIndex column 1.3.6.1.2.1.4.22.1.1 ipNetToMediaPhysAddress column 1.3.6.1.2.1.4.22.1.2 ipNetToMediaNetAddress column 1.3.6.1.2.1.4.22.1.3 ipNetToMediaType column 1.3.6.1.2.1.4.22.1.4 ipRoutingDiscards scalar 1.3.6.1.2.1.4.23 icmp node 1.3.6.1.2.1.5 icmpInMsgs scalar 1.3.6.1.2.1.5.1 icmpInErrors scalar 1.3.6.1.2.1.5.2 icmpInDestUnreachs scalar 1.3.6.1.2.1.5.3 icmpInTimeExcds scalar 1.3.6.1.2.1.5.4 icmpInParmProbs scalar 1.3.6.1.2.1.5.5 icmpInSrcQuenchs scalar 1.3.6.1.2.1.5.6 icmpInRedirects scalar 1.3.6.1.2.1.5.7 icmpInEchos scalar 1.3.6.1.2.1.5.8 icmpInEchoReps scalar 1.3.6.1.2.1.5.9 icmpInTimestamps scalar 1.3.6.1.2.1.5.10 icmpInTimestampReps scalar 1.3.6.1.2.1.5.11 icmpInAddrMasks scalar 1.3.6.1.2.1.5.12 icmpInAddrMaskReps scalar 1.3.6.1.2.1.5.13 icmpOutMsgs scalar 1.3.6.1.2.1.5.14 icmpOutErrors scalar 1.3.6.1.2.1.5.15 icmpOutDestUnreachs scalar 1.3.6.1.2.1.5.16 icmpOutTimeExcds scalar 1.3.6.1.2.1.5.17 icmpOutParmProbs scalar 1.3.6.1.2.1.5.18 icmpOutSrcQuenchs scalar 1.3.6.1.2.1.5.19 icmpOutRedirects scalar 1.3.6.1.2.1.5.20 icmpOutEchos scalar 1.3.6.1.2.1.5.21 icmpOutEchoReps scalar 1.3.6.1.2.1.5.22 icmpOutTimestamps scalar 1.3.6.1.2.1.5.23 icmpOutTimestampReps scalar 1.3.6.1.2.1.5.24 icmpOutAddrMasks scalar 1.3.6.1.2.1.5.25 icmpOutAddrMaskReps scalar 1.3.6.1.2.1.5.26 tcp node 1.3.6.1.2.1.6 tcpRtoAlgorithm scalar 1.3.6.1.2.1.6.1 tcpRtoMin scalar 1.3.6.1.2.1.6.2 tcpRtoMax scalar 1.3.6.1.2.1.6.3 tcpMaxConn scalar 1.3.6.1.2.1.6.4 tcpActiveOpens scalar 1.3.6.1.2.1.6.5 tcpPassiveOpens scalar 1.3.6.1.2.1.6.6 tcpAttemptFails scalar 1.3.6.1.2.1.6.7 tcpEstabResets scalar 1.3.6.1.2.1.6.8 tcpCurrEstab scalar 1.3.6.1.2.1.6.9 tcpInSegs scalar 1.3.6.1.2.1.6.10 tcpOutSegs scalar 1.3.6.1.2.1.6.11 tcpRetransSegs scalar 1.3.6.1.2.1.6.12 tcpConnTable table 1.3.6.1.2.1.6.13 tcpConnEntry row 1.3.6.1.2.1.6.13.1 tcpConnState column 1.3.6.1.2.1.6.13.1.1 tcpConnLocalAddress column 1.3.6.1.2.1.6.13.1.2 tcpConnLocalPort column 1.3.6.1.2.1.6.13.1.3 tcpConnRemAddress column 1.3.6.1.2.1.6.13.1.4 tcpConnRemPort column 1.3.6.1.2.1.6.13.1.5 tcpInErrs scalar 1.3.6.1.2.1.6.14 tcpOutRsts scalar 1.3.6.1.2.1.6.15 udp node 1.3.6.1.2.1.7 udpInDatagrams scalar 1.3.6.1.2.1.7.1 udpNoPorts scalar 1.3.6.1.2.1.7.2 udpInErrors scalar 1.3.6.1.2.1.7.3 udpOutDatagrams scalar 1.3.6.1.2.1.7.4 udpTable table 1.3.6.1.2.1.7.5 udpEntry row 1.3.6.1.2.1.7.5.1 udpLocalAddress column 1.3.6.1.2.1.7.5.1.1 udpLocalPort column 1.3.6.1.2.1.7.5.1.2 egp node 1.3.6.1.2.1.8 egpInMsgs scalar 1.3.6.1.2.1.8.1 egpInErrors scalar 1.3.6.1.2.1.8.2 egpOutMsgs scalar 1.3.6.1.2.1.8.3 egpOutErrors scalar 1.3.6.1.2.1.8.4 egpNeighTable table 1.3.6.1.2.1.8.5 egpNeighEntry row 1.3.6.1.2.1.8.5.1 egpNeighState column 1.3.6.1.2.1.8.5.1.1 egpNeighAddr column 1.3.6.1.2.1.8.5.1.2 egpNeighAs column 1.3.6.1.2.1.8.5.1.3 egpNeighInMsgs column 1.3.6.1.2.1.8.5.1.4 egpNeighInErrs column 1.3.6.1.2.1.8.5.1.5 egpNeighOutMsgs column 1.3.6.1.2.1.8.5.1.6 egpNeighOutErrs column 1.3.6.1.2.1.8.5.1.7 egpNeighInErrMsgs column 1.3.6.1.2.1.8.5.1.8 egpNeighOutErrMsgs column 1.3.6.1.2.1.8.5.1.9 egpNeighStateUps column 1.3.6.1.2.1.8.5.1.10 egpNeighStateDowns column 1.3.6.1.2.1.8.5.1.11 egpNeighIntervalHello column 1.3.6.1.2.1.8.5.1.12 egpNeighIntervalPoll column 1.3.6.1.2.1.8.5.1.13 egpNeighMode column 1.3.6.1.2.1.8.5.1.14 egpNeighEventTrigger column 1.3.6.1.2.1.8.5.1.15 egpAs scalar 1.3.6.1.2.1.8.6 transmission node 1.3.6.1.2.1.10 snmp node 1.3.6.1.2.1.11 snmpInPkts scalar 1.3.6.1.2.1.11.1 snmpOutPkts scalar 1.3.6.1.2.1.11.2 snmpInBadVersions scalar 1.3.6.1.2.1.11.3 snmpInBadCommunityNames scalar 1.3.6.1.2.1.11.4 snmpInBadCommunityUses scalar 1.3.6.1.2.1.11.5 snmpInASNParseErrs scalar 1.3.6.1.2.1.11.6 snmpInTooBigs scalar 1.3.6.1.2.1.11.8 snmpInNoSuchNames scalar 1.3.6.1.2.1.11.9 snmpInBadValues scalar 1.3.6.1.2.1.11.10 snmpInReadOnlys scalar 1.3.6.1.2.1.11.11 snmpInGenErrs scalar 1.3.6.1.2.1.11.12 snmpInTotalReqVars scalar 1.3.6.1.2.1.11.13 snmpInTotalSetVars scalar 1.3.6.1.2.1.11.14 snmpInGetRequests scalar 1.3.6.1.2.1.11.15 snmpInGetNexts scalar 1.3.6.1.2.1.11.16 snmpInSetRequests scalar 1.3.6.1.2.1.11.17 snmpInGetResponses scalar 1.3.6.1.2.1.11.18 snmpInTraps scalar 1.3.6.1.2.1.11.19 snmpOutTooBigs scalar 1.3.