Guest

Preview Tool

Cisco Bug: CSCun70804 - Incorrect encaps to PPTP with ip cef enabled (request-dialin - dialer)

Last Modified

Feb 13, 2018

Products (103)

  • Cisco IOS
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco VG204 Analog Voice Gateway
  • Cisco 1812 Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco AS5400XM Universal Gateway
  • Cisco 1803 Integrated Services Router
  • Cisco 878 Integrated Services Router
  • Cisco 861W Integrated Services Router
View all products in Bug Search Tool Login Required

Known Affected Releases

15.1(4)M4

Description (partial)

Symptom:
Traffic is dropped by upstream ISP if the router connects to ISP via PPTP or L2TP (configuration with VPDN "request-dialin" and dialer interface). This happens due to invalid packet encapsulation in CEF switching mode. Process-switching mode (e.g. traffic originated by the router) is not affected.

Conditions:
This issue exists in all new IOS versions, at least in 15.1M and above.

Related Community Discussions

Не стабильная работа PPTP клиент на CISCO 881
Здравствуйте! Имеется маршрутизатор Cisco 881: CISCO881-K9, лицензия advipservices, прошивка c880data-universalk9-mz.153-3.M2.bin Данный маршрутизатор обеспечивает подключение к провайдеру (доступ в интернет). Дополнительно на нём настроен PPTP клиент для подключения к VPN серверу партнёра и обеспечивает доступ к его ресурсам. PPTP подключается и в общем-то работает... Config настроек PPTP клиента: | vpdn enable ! vpdn-group 1  request-dialin   protocol pptp   rotary-group 1  initiate-to ip XXX.XXX.XXX.XXX ...
Latest activity: Sep 12, 2014
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.