我在一个数据中心工作,我正在编写一个映射我们所有设备的php工具,并且可以告诉我们那里有什么是收费的。
它首先将巨大的mac及其ips列表从两个内核中拉入临时表。然后,它遍历所有机架*并尝试查找mac所属的端口。由于没有黄金指令(头上有灯泡),我必须:
最后,它需要mac,ips和port并填充主表。
问题在于第一步。 1.3.6.1.2.1.31.1.1.1.1适用于大多数交换机,但有一些不起作用。 1.3.6.1.4.1.1991.1.1.3.3.1.1.38接近我正在寻找的东西,但我并不完全舒服,这正是我正在寻找的。我能够找到铸造厂下的特定设备型号>产品>注册,但该文件夹下没有任何MIB。所以我的问题是:
任何方向都会很棒。 -Justin
* =机架型号:cisco 2900xl,代工厂FI4802 +变种
答案 0 :(得分:2)
您可以这样做(在HP Procurve上测试):
从您的Linux服务器:
$ snmpwalk -v 1 -c public xxx.xxx.xxx.xxx 1.3.6.1.2.1.17.4.3.1.2 | grep的 “整数:11”
(端口号11)
将返回:
SNMPv2-SMI :: mib-2.17.4.3.1.2.44.118.138.64.143.95 = INTEGER:11 SNMPv2-SMI :: mib-2.17.4.3.1.2.56.170.60.108.174.57 = INTEGER:11 SNMPv2-SMI :: mib-2.17.4.3.1.2.104.181.153.172.54.237 = INTEGER:11 SNMPv2-SMI :: mib-2.17.4.3.1.2.120.172.192.143.226.236 = INTEGER:11 SNMPv2-SMI :: mib-2.17.4.3.1.2.124.195.161.20.109.76 = INTEGER:11 SNMPv2-SMI :: mib-2.17.4.3.1.2。 152.75.225.59.127.180 = INTEGER:11
然后,您可以执行此操作以查找已连接的Mac地址:
$ snmpwalk -v 1 -c public xxx.xxx.xxx.xxx 1.3.6.1.2.1.17.4.3.1.1 | grep“152.75.225.59.127.180”
返回mac地址:
SNMPv2-SMI :: mib-2.17.4.3.1.1.152.75.225.59.127.180 = Hex-STRING: 98 4B E1 3B 7F B4
您可以创建一个script.sh来执行此操作...
答案 1 :(得分:0)
当我需要从交换机发现MAC和其他信息时,我使用'snmpwalk'和'snmpbulkwalk'命令来检查他们的SNMP数据内容
例如:
snmpbulkwalk -v2c 192.168.30.40 -c public 1.3.6.1.2.1.31.1.1.1.1
输出:
IF-MIB::ifName.1 = STRING: Gi0/1
IF-MIB::ifName.2 = STRING: Gi0/2
IF-MIB::ifName.3 = STRING: Gi0/3
IF-MIB::ifName.4 = STRING: Gi0/4
IF-MIB::ifName.5 = STRING: Gi0/5
IF-MIB::ifName.6 = STRING: Gi0/6
IF-MIB::ifName.7 = STRING: Gi0/7
IF-MIB::ifName.8 = STRING: Gi0/8
IF-MIB::ifName.9 = STRING: Gi0/9
IF-MIB::ifName.10 = STRING: Gi0/10
IF-MIB::ifName.11 = STRING: Gi0/11
IF-MIB::ifName.12 = STRING: Gi0/12
IF-MIB::ifName.13 = STRING: Nu0
IF-MIB::ifName.14 = STRING: Vl1
IF-MIB::ifName.15 = STRING: Vl2
IF-MIB::ifName.16 = STRING: Vl416
和
snmpbulkwalk -v2c 192.168.30.40 -c public 1.3.6.1.2
输出大量信息,您可以在其中查找自己喜欢的MAC或任何其他内容
答案 2 :(得分:0)
如果您希望以编程方式从Windows Server执行此操作,则可以使用SnmpSharpNet库来完成相同的操作。下面是一个示例,它将使用OID 1.3.6.1.2.1.17.7.1.2.2.1.2.1
创建特定Dell交换机上所有MAC地址和端口的列表 using SnmpSharpNet;
List<KeyValuePair<string, string>> portList = new List<KeyValuePair<string, string>>();
IPAddress ip = IPAddress.Parse("192.168.0.2");
SnmpWalk(ip, "snmpcommunity", "1.3.6.1.2.1.17.7.1.2.2.1.2.1", "1");
//SNMPWALK the ports on a switch or stack of switches. Ports will be labeled SwitchNum/Stack Number/Port Numbers.
private void SnmpWalk(IPAddress ip, string snmpCommunity, string oid, string switchNum)
{
UdpTarget target = new UdpTarget(ip);
// SNMP community name
OctetString community = new OctetString(snmpCommunity);
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 1
param.Version = SnmpVersion.Ver1;
// Define Oid that is the root of the MIB tree you wish to retrieve
Oid rootOid = new Oid(oid);
// This Oid represents last Oid returned by the SNMP agent
Oid lastOid = (Oid)rootOid.Clone();
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.GetNext);
// Loop through results
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to a random value
// that needs to be incremented on subsequent requests made using the
// same instance of the Pdu class.
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
// Clear Oids from the Pdu class.
pdu.VbList.Clear();
// Initialize request PDU with the last retrieved Oid
pdu.VbList.Add(lastOid);
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
// You should catch exceptions in the Request if using in real application.
// If result is null then agent didn't reply or we couldn't parse the reply.
if (result != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus,
result.Pdu.ErrorIndex);
lastOid = null;
break;
}
else
{
// Walk through returned variable bindings
foreach (Vb v in result.Pdu.VbList)
{
// Check that retrieved Oid is "child" of the root OID
if (rootOid.IsRootOf(v.Oid))
{
//Convert OID to MAC
string[] macs = v.Oid.ToString().Split('.');
string mac = "";
int counter = 0;
foreach (string chunk in macs)
{
if (counter >= macs.Length - 6)
{
mac += string.Format("{0:X2}", int.Parse(chunk));
}
counter += 1;
}
//Assumes a 48 port switch (52 actual). You need to know these values to correctly iterate through a stack of switches.
int dellSwitch = 1 + int.Parse(v.Value.ToString()) / 52;
int port = int.Parse(v.Value.ToString()) - (52 * (dellSwitch - 1));
KeyValuePair<string, string> Port = new KeyValuePair<string, string>(mac, switchNum + "/" + dellSwitch.ToString() + "/" + port.ToString());
portList.Add(Port);
//Exit Loop
lastOid = v.Oid;
}
else
{
//End of the requested MIB tree. Set lastOid to null and exit loop
lastOid = null;
}
}
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
}
target.Close();
}
有一个整个项目利用此示例将此信息解析回主机名here