{"product_id":"l-sl-4350-sec-k9","title":"Cisco L-SL-4350-SEC-K9 | Security License for ISR 4351 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4350-SEC-K9 | ISR 4351 Security Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-SEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4351 Security Technology Package License\u003c\/strong\u003e — the comprehensive security feature set for the high-performance Cisco ISR 4351 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4351 SEC license\u003c\/strong\u003e activates Zone-Based Firewall (ZBFW), IPsec VPN with IKEv2, DMVPN, GET VPN, FlexVPN, and SSL VPN with 200 Mbps base throughput, making it the essential upgrade for enterprise campus, data center edge, and large regional hub deployments that require carrier-grade security with the highest throughput in the ISR 4000 family.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4350-SEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4350-SEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4351 Security license\u003c\/strong\u003e is a perpetual IOS XE Smart License that transforms the ISR 4351 into a full-featured high-throughput secure WAN platform. The license includes \u003cstrong\u003eZone-Based Policy Firewall\u003c\/strong\u003e for granular inter-zone traffic control at wire speed, \u003cstrong\u003eIKEv2\/IPsec VPN\u003c\/strong\u003e with hardware-accelerated AES-GCM encryption, \u003cstrong\u003eDMVPN\u003c\/strong\u003e for large-scale dynamic hub-and-spoke VPN fabrics, \u003cstrong\u003eGET VPN\u003c\/strong\u003e for any-to-any group encryption, \u003cstrong\u003eFlexVPN\u003c\/strong\u003e for unified IKEv2-based policy-driven VPN, \u003cstrong\u003eSSL VPN\u003c\/strong\u003e for high-concurrency clientless remote access, and \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e for comprehensive DDoS defense. For unlimited crypto throughput and tunnel capacity, pair with \u003cstrong\u003eFL-4350-HSEC-K9\u003c\/strong\u003e. Whether securing a campus WAN edge or building an enterprise encrypted backbone, the \u003cstrong\u003eISR 4351 SEC license e-delivery\u003c\/strong\u003e delivers maximum security on the highest-performance ISR 4000 platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eZone-Based Policy Firewall (ZBFW)\u003c\/strong\u003e — high-throughput stateful inspection with per-zone security policies for wire-speed inter-segment traffic control\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIKEv2\/IPsec VPN with AES-GCM\u003c\/strong\u003e — hardware-accelerated AES-GCM encryption delivering high-throughput site-to-site and remote-access VPN\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDMVPN and FlexVPN\u003c\/strong\u003e — large-scale Dynamic Multipoint VPN for hub-and-spoke fabrics and FlexVPN for unified IKEv2 policy-driven configuration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eGET VPN\u003c\/strong\u003e — Group Encrypted Transport VPN for any-to-any encrypted group communication with minimal overhead at scale\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSSL VPN (WebVPN)\u003c\/strong\u003e — high-concurrency clientless browser-based remote access for large enterprises with flexible access policies\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e — enterprise-grade control-plane policing and secure management for comprehensive infrastructure defense\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase,  no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ecampus WAN security, data center edge, and enterprise encrypted backbone\u003c\/strong\u003e on the highest-performance ISR 4000 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-SEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4351\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. Base throughput is 200 Mbps; for unlimited crypto throughput and IPsec tunnels, pair with \u003cstrong\u003eFL-4350-HSEC-K9\u003c\/strong\u003e. For higher aggregate throughput, add \u003cstrong\u003eFL-4350-PERF-K9\u003c\/strong\u003e (400 Mbps) and \u003cstrong\u003eFL-4350-BOOST-K9\u003c\/strong\u003e. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, ISR 4331, or ISR 4431\/4451\/4461 — each platform requires its own license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4351 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4351 Security technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4350-SEC-K9  |  L-SL-4350-SEC-K9  |  SL-4350-SEC-K9=  |  L-SL-4350-SEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957544571100,"sku":"L-SL-4350-SEC-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4350-SEC-K9.jpg?v=1776688737","url":"https:\/\/switchlicense.com\/products\/l-sl-4350-sec-k9","provider":"Switch License","version":"1.0","type":"link"}