How to accurately determine IP address when using VPN?

How to Determine Your IP Address When Using VPN and Check Routing for Specific Domains Like Mail.ru

To determine the IP address from which you access websites when using a VPN and to verify proper routing for specific domains such as mail.ru, there are several reliable methods. Your situation where different websites show different IP addresses is normal and depends on the detection method used.

Contents

• Basic IP Address Checking Methods
• Checking Routing for Specific Domains
• Tools for Checking IP with VPN
• Analyzing Your V2RayN Configuration
• How to Accurately Determine IP for Mail.ru
• Additional Verification Methods
• Common Problems and Solutions

Basic IP Address Checking Methods

1. Comparing Results on Different Websites

Different IP checking services use different detection methods and databases, so it’s normal to get different results:

• Yandex.ru may use an IP based on your browser’s geolocation or other signals
• 2ip.io and similar services check the actual outgoing IP address of your connection

Important: If your VPN is working correctly, most IP checkers should show the IP address of your VPN server (150.000.000.000), except in cases of leaks.

2. Command Line for Checking Routing

On Windows, use the following commands to analyze routing:

route print
netstat -rn

This command will display the routing table where you can see which gateway is used by default and how traffic is being routed.

3. Traceroute for Checking Path

Use the tracert command to trace the path to a specific website:

tracert mail.ru

If traffic is going through the VPN, you will see the IP addresses of your VPN provider’s servers in the path.

Checking Routing for Specific Domains

1. Testing Through Different Browsers

Open websites in different browsers or incognito mode to exclude the influence of cache or cookies:

• Mail.ru in Chrome
• Mail.ru in Firefox
• Mail.ru in Edge

2. Using Specialized Services

Here are the most reliable services for checking VPN and IP:

• IPLeak.net - checks for DNS and WebRTC leaks
• Whoer.net - comprehensive anonymity check
• VPNTesting.com - specialized VPN testing
• AbstractAPI VPN Detection - VPN detection

3. Checking DNS Queries

nslookup mail.ru

If DNS queries are going through the VPN, you will see the VPN server’s IP addresses as the DNS resolver.

Tools for Checking IP with VPN

1. Online Services Focused on Accuracy

These services are more reliable for checking VPN connections:

• IPQualityScore - specialized VPN detector
• Fraudlogix - VPN and proxy checking
• IP Teoh - VPN and proxy detection

2. Mobile Applications

Use mobile applications to check from different devices:

• WhatIsMyIP (Android/iOS)
• IP Check (Android/iOS)

3. Browser Extensions

Install extensions that show your current IP and VPN status:

• IP Location
• VPN Check
• WebRTC Leak Protection

Analyzing Your V2RayN Configuration

1. Checking Routing Rules

Your “All except Russia” setting means:

• Russian websites (including mail.ru) should use direct access (your white IP 109.000.000.000)
• All other websites should use VPN (IP 150.000.000.000)

2. Checking GeoIP and GeoSite

Ensure you have up-to-date databases:

"routing": {
  "domainStrategy": "IPIfNonMatch",
  "rules": [
    {
      "type": "field",
      "domain": ["geosite:ru"],
      "outboundTag": "direct"
    },
    {
      "type": "field", 
      "domain": ["geosite:category-ads-all"],
      "outboundTag": "block"
    }
  ]
}

3. Checking DNS Functionality

DNS queries should be properly routed according to the rules. If mail.ru uses Russian DNS servers, it may show your white IP even when the VPN is enabled.

How to Accurately Determine IP for Mail.ru

1. Method 1: Checking Through Russian Services

Since mail.ru is a Russian service, use Russian checks:

# Through command line
curl -s https://yandex.ru/internet | grep -o '[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+'

2. Method 2: Checking Through API

Use API services for programmatic checking:

import requests

def get_ip_from_service(service_url):
    try:
        response = requests.get(service_url, timeout=5)
        if response.status_code == 200:
            return response.text.strip()
    except:
        pass
    return None

# Check through different services
services = [
    'https://api.ipify.org',
    'https://ifconfig.co/ip',
    'https://icanhazip.com'
]

for service in services:
    ip = get_ip_from_service(service)
    print(f"{service}: {ip}")

3. Method 3: Checking Through Browser Tools

Open browser developer tools (F12) and run:

// In browser console
fetch('https://api.ipify.org?format=json')
  .then(response => response.json())
  .then(data => console.log('Current IP:', data.ip));

Additional Verification Methods

1. Checking for WebRTC Leaks

WebRTC can leak your real IP address even when using a VPN. Check through:

// In browser console
function getIPs(callback) {
    var ip_dups = {};
    
    var ip_callbacks = {
        "rtcweb-candidates": function(ips) {
            ips.forEach(function(ip) {
                if (ip_dups[ip] === undefined) {
                    callback(ip);
                }
                ip_dups[ip] = true;
            });
        }
    };

    for (var proto in window.RTCPeerConnection.prototype) {
        var native_method = window.RTCPeerConnection.prototype[proto];
        if (native_method) {
            window.RTCPeerConnection.prototype[proto] = function() {
                var args = arguments;
                native_method.apply(this, arguments);
                if (proto === 'createOffer' || proto === 'createAnswer') {
                    var pc = this;
                    var gatherIceCandidates = function() {
                        pc.onicecandidate = function(event) {
                            if (event.candidate) {
                                var lines = event.candidate.candidate.split('\n');
                                var candidate = lines[0];
                                var ip_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/;
                                var match = ip_regex.exec(candidate);
                                if (match) {
                                    ip_dups[match[1]] = true;
                                    for (var callback_name in ip_callbacks) {
                                        if (ip_callbacks[callback_name]) {
                                            ip_callbacks[callback_name]([match[1]]);
                                        }
                                    }
                                }
                            }
                        };
                        pc.onicecandidate = null;
                    };
                    setTimeout(gatherIceCandidates, 1000);
                }
            };
        }
    }
}

getIPs(function(ip) {
    console.log('WebRTC IP:', ip);
});

2. Checking Through Network Monitors

Use utilities for monitoring network traffic:

• Wireshark - for deep packet analysis
• GlassWire - for visualizing network activity
• CurrPorts - for viewing active network connections

3. Checking Through Proxy Services

Use online proxies for checking:

# Through curl with user-agent specified
curl -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)" \
     -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" \
     https://mail.ru

Common Problems and Solutions

1. Problem: Different IPs on Different Websites

Cause: Different detection methods and databases
Solution: Use multiple services to confirm results

2. Problem: Mail.ru Always Shows White IP

Cause: Mail.ru may use Russian DNS servers or have its own logic for IP detection
Solution:

• Check through Russian services
• Use traceroute to analyze the path
• Try clearing browser cache and cookies

3. Problem: VPN Not Routing Traffic Correctly

Solution:

1. Check routing settings in v2rayN
2. Update GeoIP and GeoSite databases
3. Check DNS configuration
4. Ensure there are no conflicting applications or antivirus programs

4. Problem: DNS or WebRTC Leaks

Solution:

• Enable leak blocking mode in v2rayN
• Use browser extensions
• Configure DNS servers in VPN

Conclusion

To accurately determine the IP address from which you access mail.ru when using a VPN with the “All except Russia” setting:

1. Mail.ru as a Russian service should use your white IP (109.000.000.000) according to the routing settings
2. For verification use a combination of methods: online services, command line, traceroute, and browser tools
3. Reliable services for checking: IPLeak.net, Whoer.net, VPNTesting.com
4. If you have doubts check through several different services and methods to confirm results
5. For mail.ru specifically use Russian checks and ensure DNS queries are being made correctly

Your V2RayN configuration with a “whitelist” for Russia should correctly route Russian sites through direct access while all others go through VPN. For full confidence, it’s recommended to periodically check routing functionality on different websites.

Sources

1. VPN Detection Test | VPN IP Address Check | VPN IP Test
2. How to Check if Your VPN is Working | NordVPN
3. Routing Configuration | 2dust/v2rayN
4. VPN Test: Check Your VPN is Working + How to Fix Any DSN Leaks
5. How to detect if an IP address is using a VPN | AbstractAPI
6. Proxy for Specific Websites (V2RayN) | SpaceCore WIKI
7. Why different websites show different ip addresses when I check my ip?
8. How to confirm VPN is working properly? | Information Security Stack Exchange