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Cisco Bug: CSCvt28539 - explicit acl needed for cellular intf for control connection bringup

Last Modified

Aug 29, 2020

Products (20)

  • Cisco XE SD-WAN Routers
  • Cisco ASR 1000 Series IOS XE SD-WAN
  • Cisco 4221 Integrated Services Router
  • Cisco 1101 Industrial Integrated Services Router
  • Cisco 4321 Integrated Services Router
  • Cisco 4331 Integrated Services Router
  • Cisco ASR 1002-X Router
  • Cisco 4431 Integrated Services Router
  • Cisco ASR 1001-X Router
  • Cisco 4461 Integrated Services Router
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Known Affected Releases

16.12.3

Description (partial)

Symptom:
Explicit acl needed for cellular interface for control connection bringup.

Conditions:
The LTE connection doesnt come up unless we have an explicit acl to allow the source-ip . This is different for other interfaces where source ip is not needed and control connections come up with no issues. Once the ace is added , everything works fine. This is an issue with dhcp if address change occurs, we need to readd the new ip else LTE goes
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