Some use cases with BSD Router Project Routing lab examples:

• Multi-tenant router and firewall
• Simple BGP/RIP/OSPF/ISIS/BABEL lab with FRRouting
• Simple BGP/RIP/OSPF/BABEL lab with bird
• BGP Route Reflector and Confederation using FRRouting and Bird
• OSPF inter-area loop prevention
• Multicast with PIM-DM
• Multicast with PIM-SM
• Equal-cost multi-path routing (ECMP)

High availability examples:

• Multi-tenant HA pf firewalls
• Simple VRRP lab
• Simple uCarp lab
• pf, pfsync, carp and pflog lab

VPN example:

• Simple PPPoE (client/server) and L2TP (LAC/LNS) lab with mpd
• Simple VPN with GRE, GIF, IPSec, OpenVPN and Wireguard
• Validating OpenVPN's low-latency servers selection patch
• Aggregating multiple ISP links with ML-PPP (mpd5)
• Aggregating multiple ISP links with MLVPN
• Strongswan IPSec mediation feature (NAT hole punching)

DHCP example:

• DHCP Relay and DHCP Server lab

Firewall:

• Dropping packets at high rate

Traffic shapping:

• Fair traffic shaping per IP with IPFW-Dummynet

IPv6 things:

• NAT64
• IPv6 only BGP/OSPF/RIPNG/ISIS lab with FRRouting

Benchmarks:

• Setting up a forwarding performance benchmark lab
• Setting up a VPN (IPSec, GRE, etc...) performance benchmark lab
• HP ProLiant DL360p Gen8 (Intel Xeon E5-2650, 8 cores)
  • Forwarding performance lab of a HP ProLiant DL360p Gen8 with 10-Gigabit Chelsio T540-CR
• SuperMicro SuperServer 5018A-FTN4 (Intel Rangeley Atom C2758, 8 cores)
  • Forwarding performance lab of a SuperServer 5018A-FTN4 with 10-Gigabit Chelsio T540-CR
  • IPSec performance of a SuperServer 5018A-FTN4
• PC Engines APU 2 (quad core AMD GX-412TC with Intel i210AT):
  • Forwarding performance lab of a PC Engines APU2
  • IPSec performance of a PC Engines APU2
• Netgate RCC-VE 4860 (quad core Intel Atom C2558 with 2 Intel i211 and 4 Intel i350 NIC):
  • Forwarding performance lab of a Netgate RCC-VE 4860
  • IPSec performance of a Netgate RCC-VE 4860
• IBM System x3550 M3 (Intel Xeon L5630, 4 cores)
  • Forwarding performance lab of an IBM System x3550 M3 with Intel 82580
  • IPSec performance lab of an IBM System x3550 M3 with Intel 82580
  • OpenVPN performance lab of an IBM System x3550 M3 with Intel 82580
  • Forwarding performance lab of an IBM System x3550 M3 with 10-Gigabit Intel X540-AT2
  • Forwarding performance lab of an IBM System x3550 M3 with 10-Gigabit Intel 82599EB
• PC Engines APU 1 (dual core AMD G-T40E with legacy NIC):
  • Forwarding performance lab of a PC Engines APU
  • IPSec performance of a PC Engines APU

Misc:

• Management of BSDRP
• Maximum BSDRP features lab (used for testing BSDRP before publish release)
• Testing grappath the ASCII network diagram tool
• FreeBSD performance regression lab

If you want to easly generate a router lab, follow this How to build a BSDRP router lab.