High-Availability Modes Supported
Active/Active	Да
Active/Active Full Mesh	Да
Active/Passive	Да
Integrated / Redirect Web Filtering
Да / Yes	Да
IPS (Deep Inspection Firewall)
Да	Да
IPS (Integrated IDP)
Да - optional upgrade	Да
Maximum Number of IP Addresses in Trusted Interfaces
Unrestricted	Да
Maximum Number of Policies
10000	Да
Maximum Number of Security Zones
28 default upgradeable to 128	Да
Maximum Number of Sessions
500000	Да
Maximum Number of Virtual LANs
4093	Да
Maximum Number of Virtual Routers
3 default upgradeable to 53	Да
Maximum Number of Virtual Systems
0 default upgradeable to 50	Да
Maximum Number of VPN Tunnels
10000	Да
Maximum Throughput
1G 3DES/AES VPN	Да
2G Firewall	Да
Number of Interfaces
4 fixed 10/100/1000 plus up to 8 mini GBIC (SX LX or TX) up to 8	Да

The ISG1000 is a fully integrated Firewall/VPN/IPS system with multi-gigabit performance, a modular architecture and rich virtualization capabilities, delivering up to 2 Gbps of firewall throughput and up to 1 Gbps of optional integrated IDP throughput

The ISG1000 is a fully integrated Firewall/VPN/IPS system with multi-gigabit performance, a modular architecture and rich virtualization capabilities, delivering up to 2 Gbps of firewall throughput and up to 1 Gbps of optional integrated IDP throughput. The base FW/VPN system comes with four fixed 10/100/1000 interfaces and two additional I/O modules for interface expansion.