win2012ipsec过滤行为
时间: 2024-03-31 08:33:20 浏览: 9
Win2012中的IPSec过滤行为指的是根据IPSec策略对网络流量进行过滤和保护的行为。IPSec是一种用于保护网络通信的协议,它通过加密和认证数据包来保护数据在传输中的安全性。
在Win2012中,可以通过配置IPSec策略来限制和保护网络流量。IPSec策略可以定义哪些流量需要加密、哪些流量需要认证、哪些流量不允许通过等规则。当网络流量匹配了相应的IPSec策略后,IPSec会自动对数据包进行加密、认证和过滤。
通过IPSec策略,可以实现以下过滤行为:
1.加密:可以对敏感数据进行加密保护,防止数据在传输过程中被窃听。
2.认证:可以对数据包进行认证,确保数据包的真实性和完整性。
3.过滤:可以根据IPSec策略对网络流量进行过滤和限制,防止未经授权的访问和攻击。
总之,Win2012中的IPSec过滤行为可以帮助保护网络通信的安全性,防止数据在传输过程中被窃听、篡改和攻击。
相关问题
win10 C++ 实现 ipsec
实现IPSec需要了解IPSec协议和相关的API。IPSec是一种网络层协议,用于提供网络安全服务,包括身份验证和加密。在Windows平台上,可以使用Windows IPsec API来实现IPsec。
在Windows平台上实现IPSec需要以下步骤:
1. 创建IPsec策略和规则:使用Windows IPsec Policy Agent API创建IPsec策略和规则,以指定IPsec的参数和规则。
2. 配置IPsec策略:使用Windows IPsec Configuration API将IPsec策略应用于网络适配器或网络连接。
3. 监视IPsec连接:使用Windows IPsec Diagnostic API监视IPsec连接,并获取相关的诊断信息。
4. 清除IPsec策略:使用Windows IPsec Policy Agent API删除IPsec策略和规则。
下面是一个简单的示例代码,用于创建和应用IPsec策略:
```cpp
#include <windows.h>
#include <stdio.h>
#include <ipsec.h>
int main(int argc, char* argv[])
{
DWORD dwError = 0;
HANDLE hPolicyStore = NULL;
IPSEC_POLICY_STORE_INFO PolicyStoreInfo;
IPSEC_POLICY_INFO PolicyInfo;
IPSEC_FILTER Filter;
IPSEC_NEGOTIATION_POLICY NegotiationPolicy;
IPSEC_SECURITY_METHOD SecurityMethod;
IPSEC_SA_LIFETIME Lifetime;
GUID gPolicyID;
GUID gFilterID;
GUID gNegPolID;
GUID gMethodID;
// Open the IPsec policy store
dwError = IpsecOpenPolicyStore(
POLSTORE_LOCAL,
NULL,
NULL,
0,
&hPolicyStore
);
if (dwError != ERROR_SUCCESS) {
printf("IpsecOpenPolicyStore failed with error %d\n", dwError);
return 1;
}
// Set the policy store information
ZeroMemory(&PolicyStoreInfo, sizeof(PolicyStoreInfo));
PolicyStoreInfo.dwVersion = IPSEC_POLICY_STORE_INFO_VERSION;
PolicyStoreInfo.pszLocationName = L"My IPsec Policy Store";
PolicyStoreInfo.pszFileName = L"C:\\Windows\\System32\\ipsec.pol";
dwError = IpsecSetPolicyStoreInfo(
hPolicyStore,
&PolicyStoreInfo
);
if (dwError != ERROR_SUCCESS) {
printf("IpsecSetPolicyStoreInfo failed with error %d\n", dwError);
goto cleanup;
}
// Create the IPsec policy
ZeroMemory(&PolicyInfo, sizeof(PolicyInfo));
PolicyInfo.dwVersion = IPSEC_POLICY_INFO_VERSION;
PolicyInfo.pszIpsecName = L"My IPsec Policy";
PolicyInfo.dwNumNFATransactions = 1;
PolicyInfo.pIpsecNFAData = (PIPSEC_NFA_DATA)LocalAlloc(LPTR, sizeof(IPSEC_NFA_DATA));
if (PolicyInfo.pIpsecNFAData == NULL) {
dwError = GetLastError();
printf("LocalAlloc failed with error %d\n", dwError);
goto cleanup;
}
// Create the IPsec filter
ZeroMemory(&Filter, sizeof(Filter));
Filter.dwVersion = IPSEC_FILTER_VERSION;
Filter.pszFilterName = L"My IPsec Filter";
Filter.u.IPVersion = IPSEC_PROTOCOL_V4;
Filter.SrcAddr.AddrType = IPSEC_ADDR_SUBNET;
Filter.SrcAddr.uIpAddr = inet_addr("192.168.0.0");
Filter.SrcAddr.uSubNetMask = inet_addr("255.255.255.0");
Filter.DestAddr.AddrType = IPSEC_ADDR_SUBNET;
Filter.DestAddr.uIpAddr = inet_addr("10.0.0.0");
Filter.DestAddr.uSubNetMask = inet_addr("255.0.0.0");
Filter.Protocol.ProtocolType = IPSEC_PROTOCOL_UDP;
Filter.SrcPort.PortType = IPSEC_PORT_SPECIFIC;
Filter.SrcPort.wPort = htons(500);
Filter.DestPort.PortType = IPSEC_PORT_SPECIFIC;
Filter.DestPort.wPort = htons(500);
// Create the IPsec negotiation policy
ZeroMemory(&NegotiationPolicy, sizeof(NegotiationPolicy));
NegotiationPolicy.dwVersion = IPSEC_NEGOTIATION_POLICY_VERSION;
NegotiationPolicy.pszIpsecName = L"My IPsec Negotiation Policy";
NegotiationPolicy.dwFlags = IPSEC_NFA_POLICY_OFFERS;
NegotiationPolicy.dwNumAuthMethods = 1;
NegotiationPolicy.pIpsecAuthMethods = (PIPSEC_AUTH_METHOD)LocalAlloc(LPTR, sizeof(IPSEC_AUTH_METHOD));
if (NegotiationPolicy.pIpsecAuthMethods == NULL) {
dwError = GetLastError();
printf("LocalAlloc failed with error %d\n", dwError);
goto cleanup;
}
// Create the IPsec security method
ZeroMemory(&SecurityMethod, sizeof(SecurityMethod));
SecurityMethod.dwVersion = IPSEC_SECURITY_METHOD_VERSION;
SecurityMethod.dwFlags = IPSEC_SECMETHOD_FLAG_NEGOTIATION;
SecurityMethod.pszSecurityMethodName = L"My IPsec Security Method";
// Set the IPsec security method lifetime
ZeroMemory(&Lifetime, sizeof(Lifetime));
Lifetime.uKeyExpirationTime = 3600;
// Add the IPsec filter to the IPsec policy
dwError = IpsecAddFilter(
hPolicyStore,
&Filter,
&gFilterID
);
if (dwError != ERROR_SUCCESS) {
printf("IpsecAddFilter failed with error %d\n", dwError);
goto cleanup;
}
// Add the IPsec security method to the IPsec policy
dwError = IpsecAddSecurityMethod(
hPolicyStore,
&SecurityMethod,
&Lifetime,
&gMethodID
);
if (dwError != ERROR_SUCCESS) {
printf("IpsecAddSecurityMethod failed with error %d\n", dwError);
goto cleanup;
}
// Add the IPsec negotiation policy to the IPsec policy
NegotiationPolicy.pIpsecAuthMethods[0].dwAuthType = IPSEC_AUTH_TYPE_PRESHARED_KEY;
NegotiationPolicy.pIpsecAuthMethods[0].pAuthInfo = (LPVOID)LocalAlloc(LPTR, sizeof(IPSEC_PRESHARED_KEY));
if (NegotiationPolicy.pIpsecAuthMethods[0].pAuthInfo == NULL) {
dwError = GetLastError();
printf("LocalAlloc failed with error %d\n", dwError);
goto cleanup;
}
((PIPSEC_PRESHARED_KEY)NegotiationPolicy.pIpsecAuthMethods[0].pAuthInfo)->pszKey = L"MySharedSecret";
dwError = IpsecAddNegotiationPolicy(
hPolicyStore,
&NegotiationPolicy,
&gNegPolID
);
if (dwError != ERROR_SUCCESS) {
printf("IpsecAddNegotiationPolicy failed with error %d\n", dwError);
goto cleanup;
}
// Add the IPsec NFA to the IPsec policy
PolicyInfo.pIpsecNFAData[0].dwVersion = IPSEC_NFA_DATA_VERSION;
PolicyInfo.pIpsecNFAData[0].pszIpsecName = L"My IPsec NFA";
PolicyInfo.pIpsecNFAData[0].dwFlags = IPSEC_NFA_POLICY_OFFERS;
PolicyInfo.pIpsecNFAData[0].dwTunnelFlags = IPSEC_TUNNEL_FLAG_PMTUD;
PolicyInfo.pIpsecNFAData[0].dwAuthMethodCount = 1;
PolicyInfo.pIpsecNFAData[0].ppAuthMethods = &gMethodID;
PolicyInfo.pIpsecNFAData[0].pInboundFilter = &gFilterID;
PolicyInfo.pIpsecNFAData[0].pOutboundFilter = &gFilterID;
PolicyInfo.pIpsecNFAData[0].pNegPol = &gNegPolID;
dwError = IpsecSetPolicyData(
hPolicyStore,
&PolicyInfo,
&gPolicyID,
NULL,
NULL
);
if (dwError != ERROR_SUCCESS) {
printf("IpsecSetPolicyData failed with error %d\n", dwError);
goto cleanup;
}
// Apply the IPsec policy to the network adapter
dwError = IpsecApplyPolicy(hPolicyStore, &gPolicyID, NULL);
if (dwError != ERROR_SUCCESS) {
printf("IpsecApplyPolicy failed with error %d\n", dwError);
goto cleanup;
}
printf("IPsec policy applied successfully!\n");
cleanup:
if (hPolicyStore != NULL) {
IpsecClosePolicyStore(hPolicyStore);
}
if (PolicyInfo.pIpsecNFAData != NULL) {
LocalFree(PolicyInfo.pIpsecNFAData);
}
if (NegotiationPolicy.pIpsecAuthMethods != NULL) {
LocalFree(NegotiationPolicy.pIpsecAuthMethods[0].pAuthInfo);
LocalFree(NegotiationPolicy.pIpsecAuthMethods);
}
return dwError;
}
```
这个示例代码创建了一个IPsec策略和规则,以将网络适配器上的流量从源地址192.168.0.0/24发送到目标地址10.0.0.0/8时进行加密和身份验证。它使用了IPsec的预共享密钥身份验证方法,并将密钥设置为“MySharedSecret”。在实际使用中,还需要根据具体需求进行适当的配置和修改。
win7设置ipsec_解决win7连接IPsec报错789和809错误
若您在Win7上设置IPSec时出现了连接IPsec报错789和809错误,可以尝试以下方法进行解决:
1. 确认您的网络连接已启用IPSec。打开“控制面板”并选择“网络和共享中心”,在左侧菜单中选择“更改适配器设置”,找到您要使用IPSec的网络连接,右键单击并选择“属性”,在“网络属性”对话框中,选择“安全”选项卡,确认“IPSec”选项已勾选。
2. 确认您的预共享密钥和加密算法设置正确。预共享密钥必须与另一端的预共享密钥相同,加密算法和身份验证协议也必须与另一端相同。
3. 禁用防火墙或添加IPSec例外。防火墙可能会阻止IPSec通信,您可以暂时禁用防火墙并尝试连接IPSec。如果禁用防火墙后可以连接,则需要添加IPSec例外来允许IPSec通信。
4. 确认您的系统已更新到最新版本。Win7的一些更新可能包含修复IPSec连接错误的补丁。
5. 重置网络适配器。打开命令提示符并输入以下命令:netsh int ip reset,然后按Enter键。重启计算机后,尝试重新连接IPSec。
希望以上方法能够帮助您解决连接IPsec报错789和809错误的问题。