Blog

Guides for India's network and security teams

Practical guides from Nexapp on SD-WAN, SASE, 4G/5G routers, post-quantum cryptography and Indian regulation for network and security teams.

Latest guides

62 posts

Class-I Local Supplier and PPP-MII for Network Gear

What a Class-I local supplier is under the PPP-MII Order, DoT's local content rules for routers, SD-WAN and CPE, and the documents a bidder needs.

· 9 min read

DPDP Rules Network Security: Ready for May 2027

What DPDP Rules 2025 mean for your network: Rule 6 safeguards mapped to controls, 72-hour breach reports, one-year logs and a checklist before May 2027.

· 9 min read

Industrial 4G Router Buying Guide for India (2026)

How to choose an industrial 4G router in India: IEC 104 and Modbus, dual SIM, private APN, M2M SIMs, DIN-rail or IP65, MTCTE, plus a spec checklist.

· 11 min read

Quantum-Safe VPN: Is IPsec Quantum-Safe? ML-KEM, IKEv2

Is IPsec quantum-safe? Where the quantum risk sits in a VPN, how RFC 9370 and ML-KEM for IKEv2 fix it, why IKEv1 can't, and a checklist for buyers.

· 8 min read

SD-WAN RFP: The Clauses Indian Banks Use (2026)

What Indian bank SD-WAN RFPs actually ask for: on-prem controller, 180-day logs, 7-year EoL, uptime bands, eligibility and a clause checklist to copy.

· 10 min read

SD-WAN Providers in India: How to Choose (2026)

How to choose between SD-WAN providers in India: the criteria Indian RFPs use, red flags to watch, a scoring checklist and the questions to ask each bidder.

· 10 min read

ZTNA vs VPN for Indian Enterprises: 2026 Guide

ZTNA vs VPN for Indian enterprises: how they differ, what RBI's 2026 Directions and CERT-In expect of remote access, and a 7-step plan to replace VPN.

· 9 min read

VSAT to 4G/LTE for ATMs in India: A Bank Playbook

How Indian banks and ATM operators move ATMs from VSAT to dual-SIM 4G/LTE: RFP thresholds, architecture, a 7-step rollout plan and FAQs.

· 7 min read

What do successful networking branches require today?

What Does a Modern Branch Network Need? | Nexapp

A modern branch network needs simple central management, diverse WAN links including 4G/5G, SD-WAN traffic steering and layered zero trust security.

· 2 min read

Unleashing the Power of Instaroute

Instaroute SD-WAN Router: 6 Key Features | Nexapp

Nexapp Instaroute SD-WAN router features: dynamic path selection, QoS, application-aware routing with DPI, failover, central control and encryption.

· 4 min read

Best of Both Technologies – ZTNA and SD-WAN

ZTNA and SD-WAN: How They Work Together | Nexapp

ZTNA and SD-WAN together verify every user and device before access, then route traffic over the best path, giving branches both security and performance.

· 4 min read

Navigating The Digital Transformation Journey with Instaroute SD-WAN

How SD-WAN Supports Digital Transformation | Nexapp

SD-WAN supports digital transformation with central control, application-aware routing, built-in security and faster new-site rollout across MPLS and LTE.

· 3 min read

What should you keep in mind while choosing IoT Connectivity?

How to Choose IoT Connectivity: 5 Checks | Nexapp

How to choose IoT connectivity: check hardware reliability, auto-reboot, automatic failover, remote management and built-in firewall and VPN before buying.

· 3 min read

What-are-the-opportunities-in-the-Indian-SD-WAN-market

SD-WAN Market in India: Growth Drivers | Nexapp

The SD-WAN market in India is driven by digital transformation, cloud-first IT and nationwide broadband, with adoption across banking, energy and retail.

· 3 min read

nexapp-great-place-to-work

Nexapp Is Great Place to Work-Certified | Nexapp

Nexapp is Great Place to Work-Certified. See what the survey measured: credibility, respect, fairness, pride and camaraderie, as rated by our employees.

· 4 min read

Want these guides applied to your network? Talk to a Nexapp architect.

24×7 NOC in Pune · 75,000+ devices deployed · 400+ enterprise and banking customers since 2014.

Request a DemoTalk to an ArchitectNo cost, no obligation. We reply within one business day.