# F5 BIG-IP Zero Trust Access vs Optimal IdM LDAP Proxy Firewall: side-by-side comparison (2026) [F5 BIG-IP Zero Trust Access](https://cybersectools.com/tools/f5-big-ip-access-policy-manager-apm) is a commercial [access management](https://cybersectools.com/categories/access-management) solution by [F5](https://cybersectools.com/companies/f5). [Optimal IdM LDAP Proxy Firewall](https://cybersectools.com/tools/optimal-idm-ldap-proxy-firewall) is a commercial [access management](https://cybersectools.com/categories/access-management) solution by [Optimal IdM](https://cybersectools.com/companies/optimal-idm). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [F5 BIG-IP Zero Trust Access](https://cybersectools.com/tools/f5-big-ip-access-policy-manager-apm) Best for: F5 BIG-IP shops securing older web apps It earns its place as the bridge for older apps, because it puts modern sign-in and MFA in front of them instead of rewriting them. It fits mid-sized and large companies that already run BIG-IP on premises. It works next to an identity provider rather than replacing one, so plan it as a second layer beside your main sign-in product. From [Best Access Management Solutions for Business](https://cybersectools.com/shortlists/best-access-management-solutions), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Need the answer fast? [Best Access Management Solutions for Business](https://cybersectools.com/shortlists/best-access-management-solutions) picks Microsoft Entra ID, Okta Single Sign-On, Ping Identity Platform and 4 more. ## Side-by-side comparison | | F5 BIG-IP Zero Trust Access | Optimal IdM LDAP Proxy Firewall | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Access Management | Access Management | | Verified | No | No | | Deployment type | On-Premises | On-Premises | | Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | F5 | Optimal IdM | | Headquarters | – | – | ### Use cases and capabilities | | F5 BIG-IP Zero Trust Access | Optimal IdM LDAP Proxy Firewall | |---|---|---| | ZTNA | Yes | – | | Zero Trust Architecture | Yes | – | | Authentication | Yes | Yes | | Authorization | Yes | – | | SSO | Yes | – | | MFA | Yes | – | | Proxy | Yes | Yes | | Policy | Yes | – | | Remote Access | Yes | – | | Active Directory | – | Yes | | NTLM | – | Yes | ### Core features **F5 BIG-IP Zero Trust Access** 10 features listed. Sign in on the page to see them. **Optimal IdM LDAP Proxy Firewall** 10 features listed. Sign in on the page to see them. ### Integrations **F5 BIG-IP Zero Trust Access** 10 integrations listed. Sign in on the page to see them. **Optimal IdM LDAP Proxy Firewall** 3 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Optimal IdM LDAP Proxy Firewall](https://cybersectools.com/tools/optimal-idm-ldap-proxy-firewall) fits if you are a small business. ## F5 BIG-IP Zero Trust Access vs Optimal IdM LDAP Proxy Firewall FAQ Common questions when comparing F5 BIG-IP Zero Trust Access vs Optimal IdM LDAP Proxy Firewall for access management. ### What is the difference between F5 BIG-IP Zero Trust Access and Optimal IdM LDAP Proxy Firewall? **F5 BIG-IP Zero Trust Access**: Identity-aware proxy and ZTNA for per-request app access with SSO, MFA and VPN, built by F5. **Optimal IdM LDAP Proxy Firewall**: LDAP proxy firewall for securing Active Directory and LDAP directories, built by Optimal IdM. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes F5 BIG-IP Zero Trust Access and Optimal IdM LDAP Proxy Firewall? **F5 BIG-IP Zero Trust Access** is made by F5. **Optimal IdM LDAP Proxy Firewall** is made by Optimal IdM. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is F5 BIG-IP Zero Trust Access a good alternative to Optimal IdM LDAP Proxy Firewall? Often, yes. F5 BIG-IP Zero Trust Access and Optimal IdM LDAP Proxy Firewall are both Access Management products, and both cover Proxy, Authentication. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [F5 BIG-IP Zero Trust Access vs SecureAuth](https://cybersectools.com/compare/f5-big-ip-access-policy-manager-apm-vs-secureauth) - [F5 BIG-IP Zero Trust Access vs Curity Identity Server](https://cybersectools.com/compare/curity-identity-server-vs-f5-big-ip-access-policy-manager-apm) - [F5 BIG-IP Zero Trust Access vs Ubisecure Workforce Identity & Access Management](https://cybersectools.com/compare/f5-big-ip-access-policy-manager-apm-vs-ubisecure-workforce-identity-and-access-management) - [Optimal IdM LDAP Proxy Firewall vs SecureAuth](https://cybersectools.com/compare/optimal-idm-ldap-proxy-firewall-vs-secureauth) - [Optimal IdM LDAP Proxy Firewall vs Curity Identity Server](https://cybersectools.com/compare/curity-identity-server-vs-optimal-idm-ldap-proxy-firewall) - [Optimal IdM LDAP Proxy Firewall vs Ubisecure Workforce Identity & Access Management](https://cybersectools.com/compare/optimal-idm-ldap-proxy-firewall-vs-ubisecure-workforce-identity-and-access-management) ## Alternatives to each - [See all F5 BIG-IP Zero Trust Access alternatives](https://cybersectools.com/alternatives/f5-big-ip-access-policy-manager-apm) - [See all Optimal IdM LDAP Proxy Firewall alternatives](https://cybersectools.com/alternatives/optimal-idm-ldap-proxy-firewall) --- Source: https://cybersectools.com/compare/f5-big-ip-access-policy-manager-apm-vs-optimal-idm-ldap-proxy-firewall For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/f5-big-ip-access-policy-manager-apm.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on F5 BIG-IP Zero Trust Access and Optimal IdM LDAP Proxy Firewall: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md