4331 router IPSEC VPN tunnel limit 225 (2024)

FAQs

What is the throughput of ISR 4331 VPN? ›

"Bandwidth capabilities of ISR4331-K9 router"

It supports up to 100 Mbps of WAN throughput, making it suitable for most small to medium-sized business environments. Additionally, the router supports up to 150 Mbps of IPsec VPN throughput, ensuring secure and efficient remote access for employees.

tunnel-limit: Specifies the maximum number of IPsec tunnels, in the range of 1 to 4294967295.

If using a gateway only for IPsec connections, the maximum available fixed capacity is 5 Gbps. So, for example, if you provision IPsec connections on the gateway, you can only provision to an aggregate bandwidth (incoming + outgoing) as 5 Gbps.

The usage of IPsec has the following limitations: Network Address Translation (NAT) is not supported. Authentication Header (AH) is not supported. IPsec supports IPv6 and IPv4-based tunnels.

Cisco 4331 Integrated Services Router delivers 100 Mbps to 300 Mbps aggregate throughput and offers one Enhanced service-module (SM-X) slot, which supports for both single- and double-wide service modules provides flexibility in deployment options.

Bi-directional throughput for traffic across IPsec tunnel is limited to 600 Mbps which results in application slowness, latency and packet loss issues for data traversing across the tunnel.

The Balance 20 will support two IPsec site-to-site tunnels and three PPTP tunnels.

On the Statistics tab of the VPN Statistics page, you can see data about IPSec VPN bandwidth and active Branch Office VPNs over the selected period of time.

What are the recommended settings for IPSec VPN? ›

IPsec is secure because it adds encryption* and authentication to this process. *Encryption is the process of concealing information by mathematically altering data so that it appears random. In simpler terms, encryption is the use of a "secret code" that only authorized parties can interpret.

The answer to preventing replay attacks is encrypting messages and including a key. IPsec provides anti-replay protection against attackers who could potentially intercept, duplicate or resend encrypted packets.

A: Each AWS Site-to-Site VPN connection has two tunnels and each tunnel supports a maximum throughput of up to 1.25 Gbps.

Calculate your expected throughput by taking the least bandwidth of either the VM, VPN Gateway, or ISP; which is measured in Megabits-per-second (/) divided by eight (8). This calculation gives you Megabytes-per-second.