Help: OpenClaw's network egress rules are blocking legit external APIs.

Hey everyone! 👋 I've been wrestling with OpenClaw's network security policies for the better part of two weeks, and I think I've finally cracked the code on getting legitimate external API traffic to flow without compromising their (admittedly robust) egress rule framework. My team's integration stack kept hitting mysterious timeouts and connection resets, and it all traced back to the default "deny-all" outbound rules.

The core issue was that OpenClaw's rule engine evaluates egress traffic on **destination port AND IP reputation**, not just FQDNs. So, simply allowing `api.stripe.com` in a rule wasn't enough because Stripe, Twilio, SendGrid, etc., all use dynamic IP ranges behind their DNS.

Here’s the recipe I pieced together, which has been running solidly for 48 hours now with zero blocked calls.

**Step 1: Map the Required Endpoints**
I created a spreadsheet listing every external service, their documented IP ranges/CIDR blocks, and the specific ports (usually 443). For example:

```json
{
"Twilio": {
"cidrs": ["34.203.250.0/23", "34.218.116.128/25", "34.224.0.0/12"],
"ports": ["443", "8443"],
"note": "From https://www.twilio.com/docs/ip s"
},
"SendGrid": {
"cidrs": ["167.89.0.0/17", "74.125.250.0/22"],
"ports": ["443", "587"],
"note": "SMTP on 587, API on 443"
}
}
```

**Step 2: Craft the OpenClaw Egress Rule Syntax**
The key was using their `network_object_group` construct to bundle CIDRs and ports. The rule order is critical—more specific rules must come before broader ones.

```bash
# Example Rule Entry in OpenClaw Config
rule egress_allow_twilio_api {
direction = egress
action = allow
protocol = tcp
destination = network_object_group.twilio_ips
destination_port = network_object_group.twilio_ports
log = true
priority = 200
}

network_object_group twilio_ips {
values = ["34.203.250.0/23", "34.218.116.128/25", "34.224.0.0/12"]
}
```

**Step 3: The "Gotcha" – SSL Inspection & SNI**
Our setup also had SSL Deep Inspection enabled. This was breaking APIs that use Certificate Pinning or have specific SNI (Server Name Indication) requirements. The fix was to create a bypass list for these critical APIs.

```bash
ssl_inspection_exclusion {
# Add domains to bypass SSL inspection
domains = ["api.stripe.com", "webhook.twilio.com", "events.sentry.io"]
}
```

**What I Learned:**
* **IP Reputation Feeds:** OpenClaw can integrate dynamic feeds. Instead of static CIDR lists, I'm now testing their integration with a trusted IP reputation feed to auto-allow known API providers.
* **Monitoring is Key:** I set up a dashboard alert for any "deny" hits on our egress logs. This caught a few undocumented IPs from a service we use.
* **Terraform Module:** I'm turning this config into a reusable Terraform module so our other teams can deploy approved API egress profiles easily.

It was a deep dive, but the reliability of our webhooks and data syncs is now rock-solid. If you're on OpenClaw and hitting similar walls, feel free to ask questions—I have a bunch of config snippets and the monitoring setup saved.

-- Ian