Cisco Expressway-E and Expressway-C Basic Configuration Deployment Guide (X14.0) - Routing Configuration

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X14-0/basic_config/exwy_b_cisco-expressway-e-and-expressway-c-basic-configuration-deployment-guide-x14-0/exwy_m_routing-configuration.html

Published

2021-04-14

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco website terms of use; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• Cisco's example DNS-zone search rule uses a negative-lookahead regex so calls to the organisation's own domain are never looked up on public DNS, while calls to other domains are. in context
• Cisco's example DNS zone uses H.323 mode On, SIP mode On, fallback transport TCP and Include address record Off. in context
• A DNS zone is used to search for externally hosted systems, as in business-to-business calling, and a DNS search rule defines when that zone is searched. in context
• In Cisco's basic configuration example the local-zone rule is priority 50, the traversal-zone rule priority 100 and the DNS-zone rule priority 150, each set to Continue on successful match. in context
• Pre-search transforms normalise aliases from H.323 and SIP devices before zones are searched, for example by appending the organisation's domain to an E.164 alias to form a SIP URI. in context

Cite this source record

APA

WarmTransfer. (2021, April 14). Cisco Expressway-E and Expressway-C Basic Configuration Deployment Guide (X14.0) - Routing Configuration. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-exwy-basic-config-x140-routing

BibTeX

@misc{warmtransfer-cisco-exwy-basic-config-x140-routing,
  title  = {Cisco Expressway-E and Expressway-C Basic Configuration Deployment Guide (X14.0) - Routing Configuration},
  author = {{WarmTransfer}},
  year   = {2021},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-exwy-basic-config-x140-routing},
  note   = {Cisco Systems, accessed 2026-09-25}
}