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Teksolvr

Firewall & VPN AI

Configure stateful firewall rules, NAT tables, IPsec, OpenVPN, and WireGuard credentials.

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About the Firewall & VPN AI

The Teksolvr Firewall & VPN AI Assistant delivers enterprise-grade network security design, policy configuration, and complex threat diagnostics. Aligned with Zero Trust Network Access (ZTNA) paradigms and next-generation firewall (NGFW) vendor architectures, this assistant covers Palo Alto Networks PAN-OS, Fortinet FortiOS, Cisco Secure Firewall, pfSense, and OPNsense systems. It assists network security architects in building IPsec IKEv2 site-to-site VPNs, configuring SASE branch connectors, engineering cloud transit security (AWS, Azure, GCP), writing Web Application Firewall (WAF) rule filters, and tuning intrusion detection/prevention systems (IDS/IPS) for network perimeter and microsegmentation defenses.

Key Capabilities

Next-Generation Firewalls

Configure zone-based security policies, application-aware signatures (App-ID), and SSL decryption profiles on Palo Alto PAN-OS, FortiGate FortiOS, and Cisco FTD/ASA.

Zero Trust & SASE Overlays

Design user-identity-based ZTNA access rules and map branches to secure SASE gateways like Prisma Access or Zscaler App Connectors.

Cloud Network Security

Deploy multi-AZ Transit VPC inspection points using Terraform templates for AWS Network Firewall, Azure Firewall, and GCP VPC Firewall policies.

IDS/IPS & WAF Rulesets

Build ModSecurity rules, Cloudflare custom WAF filters, Snort signatures, and Suricata alert triggers to detect and block malicious network patterns.

Cryptographic Tunnels & NAT

Implement secure site-to-site IPsec IKEv2 VPNs, WireGuard peer configs, hairpin NAT redirection, and PKI certificate authority setups.

Common Questions This Assistant Answers

  • How do I configure an IPsec IKEv2 site-to-site VPN between Palo Alto PAN-OS and FortiGate FortiOS?
  • What are the recommended CLI commands to troubleshoot dropped packets and check sessions in FortiOS?
  • How do I write a Snort rule to detect SSH brute-force attempts and trigger firewall bans?
  • Provide a Terraform configuration to route egress traffic through an AWS Network Firewall endpoint.
  • How do I set up a Zero Trust Network Access (ZTNA) policy rule verified by device client tags?

Related Diagnostic Tools

Firewall Rule GeneratorMTU & MSS CalculatorOpen Port CheckerPort ScannerIP Reputation CheckerSSL Certificate Checker

Authoritative References

NIST SP 800-41 Rev 1 — Guidelines on Firewalls and Firewall PolicyPalo Alto Networks Security Best PracticesFortinet FortiOS Administration GuideIETF RFC 7296 — IKEv2 Protocol SpecificationOWASP Web Application Firewall (WAF) Guide

All AI-generated advice aligns with industry standards from IETF, NIST, and vendor documentation.