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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


Description (partial)

Explicit acl needed for cellular interface for control connection bringup.

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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