Network requirements for Webex for Government (FedRAMP)

Publisher

Cisco Systems (Webex Help Center)

URL

https://help.webex.com/en-us/article/n71sm9e/Network-requirements-for-Webex-for-Government-(FedRAMP)

Published

2026-07-31

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

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

Source notes citing this source

• The Webex for Government network requirements list IP subnets for Webex Calling services including 23.89.18.0/23, 163.129.16.0/21 and 144.196.224.0/21. in context
• Webex for Government Local Gateway SRTP media uses UDP source ports 8000-48198 toward destination ports 8500-8700 and 19560-65535. in context
• Webex for Government Local Gateway SIP TLS signalling goes from TCP source ports 8000-65535 to destination ports 5062 and 8934. in context
• All Webex for Government traffic requires TLS 1.2 or TLS 1.3, and mTLS is required for on-premises SIP registered devices. in context
• Webex for Government network requirements list *.webexgov.us among the domains to allow, alongside *.webex.com, *.wbx2.com and *.ciscospark.com. in context

Cite this source record

APA

WarmTransfer. (2026, July 31). Network requirements for Webex for Government (FedRAMP). WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-help-n71sm9e-webex-for-gov-network-reqs

BibTeX

@misc{warmtransfer-cisco-help-n71sm9e-webex-for-gov-network-reqs,
  title  = {Network requirements for Webex for Government (FedRAMP)},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-help-n71sm9e-webex-for-gov-network-reqs},
  note   = {Cisco Systems (Webex Help Center), accessed 2026-09-24}
}