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Cisco Bug: CSCtb98080 - IOS Webvpn SSL Process stops responding, Users Can't Load Login Page

Last Modified

Jan 28, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Symptoms: When you attempt to browse to a WebVPN portal you only see a blank
 page. The router does not send the browser a certificate and the portal login
 page is not displayed. The command <CmdBold>debug webvpn sdps<noCmdBold> logs
 the following error message:
 WV-SDPS: Sev 4:sslvpn_tcp_read_notify(),line 1569:No to notify read: already
 queued[1] 004549: 
 Conditions: The symptom is observed when the SSLVPN process is waiting for an
 HTTP REQUEST from a client on the port configured using the
 <CmdBold>http-redirect <port no><noCmdBold> command but the process does not
 wake up. This can happen because of an unexpected IPC message to the SSLVPN
 process by another IOS process.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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