The Basic Configuration guide's DNS zone search rule on Expressway-E has priority 150, source All zones, Request must be authenticated No, a regex that excludes the local domain (of the form (?!.*@example\.com.*$).*), and target DNSZone.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- search rules
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X14.0
- Checked
- 2026-09-25
Sources
- Cisco Expressway-E and Expressway-C Basic Configuration Deployment Guide (X14.0) - Routing Configuration — Cisco Systems · tier 2 current vendor documentation · Routing Configuration > Task 13: Configuring DNS Zone Search Rules
Cite this note
APA
WarmTransfer. (2026, September 25). Setting up business-to-business calling on Cisco Expressway: source note expressway-b2b-setup-dns-search-rule-example. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-b2b-setup-dns-search-rule-example
BibTeX
@misc{warmtransfer-claim-expressway-b2b-setup-dns-search-rule-example,
title = {Setting up business-to-business calling on Cisco Expressway: source note expressway-b2b-setup-dns-search-rule-example},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-b2b-setup-dns-search-rule-example},
note = {Source note expressway-b2b-setup-dns-search-rule-example, checked 2026-09-25}
}