Only allow specific URI through F5 for virtual server

What issue you are observing traffic redirection?

The iRule I provided above simply rejects all traffic instead of allowing the specific URI I need to allow through. Not sure what I'm missing in the code to ensure the good URI is allowed to pass through to the backend servers.

Try below irule

        when HTTP_REQUEST {
        set uri [string tolower [HTTP::path]]
        switch -glob $uri {
            "/soa-infra/resources/externalendpoint/*" {
    HTTP::uri "/uri"  
                 }
        default { reject }
    }
}

Will do and report back. Thanks!

Still getting a connection reset with the recommended iRule. No matter what URI I enter. It looks like it's taking only the default and not allowing the good URI still.

It looks like this worked briefly, then stopped functioning after around 60 seconds. Now receiving connection resets again. Extremely strange behaviour from the F5.

iRule used: when HTTP_REQUEST { set uri [string tolower [HTTP::path]] switch -glob $uri {"/soa-infra/resources/ExternalEndpoint/*" { HTTP::uri "/uri" } default { reject } } }

One immediate issue: You're using the 'string tolower' function which will convert the URI to lower-case. However your match string includes upper-case characters, so your test will never match.

Change your test condition to all lower case, or remove 'tolower' if you need your match to be case-sensitive.

Also, is the asterisk actually part of the URI you are attempting to match? Don't include it if you're using it as a glob "match anything else". Just include the literal string you want to match with 'starts_with'.