🔒 VPN Services

Site-to-Site & Remote Access with Strong Crypto, MFA, and Measurable SLOs

VPN (Virtual Private Network) creates encrypted tunnels for site-to-site connectivity and remote access—so data traverses untrusted networks safely and predictably.
SolveForce designs and operates VPNs that are identity-aware, MFA-enforced, high-availability, and evidence-rich—and we’ll tell you when ZTNA/SASE is the better fit for user access.

Nearby: 🔀 SD-WAN → /sd-wan • 🛡️ SASE → /sase • 🔐 ZTNA → /ztna
Keys & crypto: 🔑 Key Mgmt/HSM → /key-management • Encryption → /encryption
Evidence & ops: 📊 SIEM/SOAR → /siem-soar • 🖥️ NOC → /noc

🎯 Outcomes (Why SolveForce VPN)

  • Confidentiality & integrity — strong ciphers, perfect-forward secrecy, policy as code.
  • High availability — dual hubs, dual last-mile, automatic tunnel failover.
  • Identity-aware remote access — SSO/MFA, device posture gates, split vs full tunnel by policy.
  • Deterministic paths — hub-and-spoke or mesh with BGP/static; predictable routing to DC/Cloud.
  • Audit-ready — tunnel SLOs, auth events, and change logs exported to SIEM.

🧭 Scope (What we deliver)

  • Site-to-site: IPsec IKEv2 (preferred), DMVPN/GETVPN where appropriate, BGP or static routing.
  • Remote access: TLS/SSL VPN (AnyConnect-style), IKEv2, or WireGuard with SSO/MFA and device posture.
  • Cloud VPN: AWS/Azure/GCP VPN gateways, policy-based or route-based, Direct Connect/ExpressRoute/Interconnect integrations. → /direct-connect
  • Head-ends & hubs: HA clusters (active/active or active/standby), geo-diverse POPs, global FQDN with health checks.
  • Crypto posture: AES-GCM, ChaCha20-Poly1305 (where supported), SHA-256/384, ECDH P-256/384, PFS enabled.

When not VPN: For user/app access, prefer ZTNA/SASE (per-app, per-session, posture-aware). Keep VPN for site-to-site and specific remote workflows. → /ztna • /sase

🧱 Building blocks (Spelled out)

  • IPsec IKEv2: route-based (VTI) with BGP; NAT-T; DPD; rekey timers aligned; PFS on.
  • TLS/SSL VPN: mutual TLS, device certificates, posture checks; split/full tunnel policies.
  • WireGuard: modern crypto & performance where supported; key rotation schedule; peer ACLs.
  • Certificates/keys: PKI-issued certs, CMK/HSM custody, automated renewal. → /pki • /key-management
  • Identity: SSO/MFA (Oidc/SAML/Radius), group-based policies; PAM for privileged access. → /iam • /pam
  • Logging: auth events, tunnel up/down, bytes, routes, posture; forwarded to SIEM/SOAR. → /siem-soar

🧰 Design patterns

A) DC/Cloud Hub-and-Spoke (Most Common)

  • Site tunnels (IPsec IKEv2) → dual hubs (colo or cloud) → BGP advertises prefixes; HA failover; QoS for voice/data.

B) Multicloud & Hybrid

  • Route-based IPsec to AWS/Azure/GCP; BGP with Direct Connect/ExpressRoute/Interconnect hubs for deterministic latency. → /direct-connect

C) Remote Access with Posture

  • TLS/SSL or IKEv2 client → SSO/MFA + device health (EDR/UEM) → split-tunnel for SaaS (SASE), full-tunnel for admin. → /sase • /mdm • /mdr-xdr

D) DMVPN/GETVPN Modernization

  • Keep DMVPN/GETVPN where multicast/VRF needs remain; otherwise migrate to SD-WAN for app-aware routing. → /sd-wan

🔒 Security & Zero-Trust (Practical controls)

  • Crypto: AES-GCM/ChaCha20-Poly1305; PFS; rekey < session lifetime; reject weak suites.
  • Identity & posture: SSO/MFA; device certs; EDR/UEM health gates; jailbreak/root checks. → /iam • /mdm • /mdr-xdr
  • Policy: default-deny; least-privilege routes; per-group split-tunnel; DNS & egress allow-lists.
  • Boundary: ZTNA/SASE for user apps; VPN for site/control; WAF for web. → /waf
  • Secrets: no static keys in configs; vault-issued; periodic rotation. → /secrets-management

📐 SLO guardrails (Targets you can measure)

KPI / SLOTarget (Recommended)
Tunnel uptime (rolling 30d)≥ 99.9–99.99% (per tunnel)
Failover time (hub loss)≤ 30–60 s (BGP/DPD tuned)
Remote-access attach (p95)≤ 3–8 s (auth + tunnel up)
One-way latency budget (metro/reg.)≤ 2–5 ms / ≤ 15–35 ms route-dependent
Jitter (one-way)≤ 15% of latency
Packet loss (sustained)< 0.1%
Evidence completeness100% (auth, routes, up/down, changes)

SLO breaches trigger tickets and SOAR actions (reroute, rekey, scale, rollback). → /siem-soar

⚙️ Networking notes

  • Routing: prefer route-based IPsec + BGP; avoid policy-only designs at scale.
  • NAT-T & MSS: enable NAT-T; clamp MSS on tunnels to avoid fragmentation.
  • QoS: mark EF for voice; steer via SD-WAN on loss/jitter thresholds.
  • DNS: split-horizon; pin resolvers; protect with DNSSEC/DoH where policy allows.
  • Cloud: propagate cloud prefixes carefully; avoid 0.0.0.0/0 unless policy requires.

📊 Observability & NOC

  • Metrics: tunnel up/down, DPD/BFD, bytes, crypto errors, rekey count, latency/jitter/loss; auth & posture outcomes.
  • Dashboards, anomaly alerts, and monthly reports; carrier/provider escalation trees.
    → /circuit-monitoring • /noc • /siem-soar

💵 Commercials

  • Head-end licensing (conc. users/tunnels), hardware/VMs, HA pairs, geo hubs.
  • Cloud gateway costs; Direct Connect/ExpressRoute ports if used.
  • Support tiers, runbooks, and managed monitoring options.

🛠️ Implementation blueprint (No-surprise rollout)

1) Topology & SLOs — spokes, hubs, clouds; RTO/RPO and attach targets.
2) Crypto & keys — suites, lifetimes, rekey; CMK/HSM custody; PKI issuance. → /key-management • /pki
3) Identity & posture — SSO/MFA groups; EDR/UEM baselines; ZTNA for user apps. → /iam • /ztna • /mdm
4) Routing — route-based tunnels, BGP, prefix-lists, route-maps; failover tests.
5) Cloud — AWS/Azure/GCP VPNs; hub-and-spoke; private on-ramps. → /direct-connect
6) Observability — logs/metrics/traces to SIEM; runbooks in SOAR. → /siem-soar
7) Drills — hub loss, key rollover, prefix blackhole, mass re-auth; publish RCAs.

✅ Pre-engagement checklist

  • 🗺️ Sites, clouds, prefixes, tenancy; desired hub locations.
  • 🔐 Cipher/KDF policy; key custody (CMK/HSM), PKI.
  • 👥 Remote-access groups, SSO/MFA, device posture (EDR/UEM).
  • 🌐 Split vs full tunnel; DNS & egress policy.
  • 🔀 SD-WAN interplay & thresholds; QoS classes.
  • 📊 SIEM/SOAR export, dashboards, and escalation tree.

🔄 Where VPN Fits (Recursive View)

1) Grammar — encrypted paths in /connectivity.
2) Syntax — underlay to /cloud hubs and DCs.
3) Semantics — /cybersecurity preserves truth (identity, keys, logging).
4) Pragmatics — /solveforce-ai predicts risk, suggests rekeys/reroutes.
5) Foundation — coherent terms via /primacy-of-language.
6) Map — indexed in /solveforce-codex & /knowledge-hub.

📞 Design VPN That’s Fast, Safe & Auditable

Related pages:
/sd-wan • /sase • /ztna • /direct-connect • /key-management • /encryption • /pki • /siem-soar • /noc • /connectivity • /cloud • /cybersecurity • /knowledge-hub