BNG / BRAS software for ISPs, on your own server
Dandy vBNG is a virtual Broadband Network Gateway (vBNG / vBRAS). It logs in your PPPoE and IPoE subscribers, checks them against RADIUS, shapes every plan, shares public addresses with CGNAT and records NAT logs, on a standard Intel Xeon server that you own. A DNS cache server and an official Ookla Speedtest server are built in.
Built-in DNS server · Built-in Ookla Speedtest server · Free demo license for 100 users · Made in India · Listed on the Government of India Trusted Telecom Portal
# why is this subscriber not online? DandyBNG> show subscriber ravi.kumar # PPP size for every login DandyBNG> set service pppoe-server mtu 1492 # a read-only web login for the NOC team DandyBNG> set system web login user noc level viewer DandyBNG> commit # one page: NICs, CPU, NAT, RADIUS, disk DandyBNG> show system health
Everything between the OLT and your upstream
One box takes the subscriber login, hands out addresses, enforces the plan, translates to your public pool and reports what happened.
Subscriber login
PPPoE and IPoE on ports, VLANs and VLAN ranges. RADIUS authentication, accounting and disconnect / change-of-authorization, or local users without RADIUS.
Plans and speed
Per-user download and upload speed from RADIUS, plus speed groups for IX, cache and gaming networks or ports, each with its own lane and priority.
CGNAT and logs
SNAT and DNAT with a per-user NAT session limit. NAT events go to your log servers as NetFlow v9 or IPFIX, with the subscriber's user name in each record.
Web and CLI
A command line for every setting, and a web panel with live users, traffic, NAT sessions, ports and logs. Viewer, operator and superuser web logins.
Built-in DNS server
A fast DNS cache on the BNG answers your subscribers' lookups: faster browsing, less upstream traffic, no separate DNS server to run.
DNS server →Ookla Speedtest server
The official Ookla Speedtest server on your own network, with a free self-renewing SSL certificate, so subscribers test the speed you really deliver.
Speedtest server →Built-in DNS server and Ookla Speedtest server
Your subscribers' DNS lookups are answered by a fast DNS cache on the BNG itself, and an official Ookla Speedtest server lets them test the speed of your own network. Both are switched on with a few commands or from the web panel.
See how it worksDNS cache server
Fast answers from the box subscribers log in through, one thread per CPU core, only for your pools, with optional DNS redirect.
Ookla Speedtest
Official Ookla server with a free, self-renewing SSL certificate and step-by-step publishing to Speedtest.
Runs on hardware you can buy anywhere
Dandy vBNG forwards in the Linux kernel with per-user policers. No special appliance: an Intel Xeon server, Intel X520 or X710 / XL710 network cards and an SSD.
- Installs offline from one ISO: every package and NIC firmware is on the disc.
- Tunes itself: NIC rings, offloads and interrupt pinning per CPU socket, at boot and at every commit.
- PPPoE spread over all receive queues on XL710 cards (Intel DDP).
- A health check that names the problem in plain words: BIOS, NIC slot, optics, RADIUS, NAT, disk.
Install the ISO
Boot the server from USB. The installer checks the hardware, lists the network cards and installs without internet.
Set ports, RADIUS and NAT
From the CLI or the web Config tab. Every change is previewed and committed in one step.
Bring subscribers online
PPPoE or IPoE on your VLANs. show subscriber tells you why a device is not connecting.
Watch and grow
Web panel, SNMP for PRTG / Zabbix / LibreNMS, and a license that grows with your users.
BNG, BRAS, CGNAT and PPPoE, explained
Planning a new broadband network or replacing a router that has run out of steam? Start here.
What is a BNG / BRAS?
What a Broadband Network Gateway does, and why ISPs move to a software vBNG.
Read more →CGNAT for ISPs
Share public IPv4 addresses safely and keep NAT logs with the subscriber's user name.
Read more →PPPoE server with RADIUS
PPPoE and IPoE logins, VLANs per OLT, speed plans and RADIUS billing integration.
Read more →Questions ISPs ask
Users per server, hardware, NAT logs, IPv6, licensing and the free demo.
Read more →Local product, local support
Trusted Telecom Portal
Dandy vBNG is listed on the Trusted Telecom Portal (TTP) launched by the Government of India for secure sourcing of telecom equipment.
One price per user count
The license is tied to the number of online sessions, not to throughput or ports. Start with the free 100-user demo and move up when you grow.
Support from Mumbai
Our engineers configure, tune and troubleshoot with you, in your working hours. Call +91 7304391953.
Try it on your own server
Download the ISO, install it on an Intel Xeon server and run up to 100 users on the free demo license. Talk to us for a production license.