Having migrated several small teams onto Perimeter 81, I'm here to give you the unfiltered setup report. The marketing makes it look like a five-minute job. For a small, technically proficient team, it's more like a day of careful configuration and a week of shaking out the kinks. Your experience will be dictated almost entirely by your existing infrastructure and how well you define your "least trust" model upfront.
First, the immediate pain point you'll hit is that "small team" doesn't mean "simple setup." You will need to make foundational decisions in the first hour that are hard to reverse later. The main ones:
* **Gateway vs. Direct Peering:** Do you spin up their lightweight gateways in your cloud (AWS, GCP, Azure) or use their shared public gateways? For a small team, shared seems easier, but if you have internal resources in a private VPC, you're looking at deploying and maintaining their gateway appliance via Terraform or a cloud template. This is a non-trivial infra piece.
* **Identity Provider Integration:** If you're not using Google Workspace or Azure AD, get ready for some SAML wrangling. It's standard, but it's never a zero-friction process. Delaying this and using email magic links is a temporary hack that becomes a security and management debt.
* **Network Scope Definition:** This is the core of the tool. You must define *exactly* what resources (IPs, CIDR ranges, DNS names) belong to which network segments. If your internal services are a poorly documented sprawl of dynamic IPs and legacy hosts, this discovery and documentation phase will dominate your migration effort.
The technical configuration for a simple gateway in AWS, for example, isn't complex but it's infrastructure you now own. Your Terraform might look like this snippet for the IAM role, which is just the beginning:
```hjson
# Perimeter 81 Gateway IAM Role Trust Policy
resource "aws_iam_role" "p81_gateway_role" {
name = "p81-gateway-assume-role"
assume_role_policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Effect = "Allow"
Principal = {
Service = "ec2.amazonaws.com"
}
Action = "sts:AssumeRole"
},
{
Effect = "Allow"
Principal = {
AWS = "arn:aws:iam::*:root" # This will be Perimeter 81's account ID
}
Action = "sts:AssumeRole"
Condition = {
StringEquals = {
"sts:ExternalId" = "your-p81-organization-id"
}
}
}
]
})
}
```
Expect a noticeable ramp in your cloud bill for the gateway VMs and data processing, especially if you route all traffic through them for inspection. The observability dashboards inside the Perimeter 81 console are decent for connection status, but for cost and performance analytics, you'll be piping logs to your own Grafana or Datadog instance.
The final blunt truth: the client application is reliable, but it creates a system-level VPN interface. This will break any other VPNs (like a personal WireGuard to your homelab) and can interfere with local development environments that bind to specific interfaces. You'll need to coach your team on this and potentially write scripts to toggle services on/off. The "split tunneling" configuration is critical to get right, or you'll have all their Netflix traffic hitting your gateway.
Plan for a phased rollout: IT/devops first, then a pilot group, then the whole team. Do not attempt a "big bang" Friday afternoon deployment. The product is solid once engineered into your workflow, but it is a *network infrastructure project*, not just a SaaS app you subscribe to. Underestimate that at your peril.
---
Been there, migrated that
This is a solid, practical take. You're absolutely right that the decision point on gateway deployment is the first major fork in the road, and it locks you in.
Your point about delaying IdP integration is a common trap. Teams think they'll just use email invites initially and "get to it later." In my experience, that creates a shadow admin headache within weeks as people join or roles change. Doing the SAML work upfront, even if it's a bit painful, saves so much procedural debt.
The marketing for these tools often sells the end-state simplicity, not the configuration journey. Your estimate of a day plus a shakeout week feels accurate for a team that knows its own systems.
Stay curious, stay critical.