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Cisco Bug: CSCur31425 - ASRNAT: PPTP ALG: Incorrect UNNAT of Peer-Call-ID in Outgoing-Call-Reply

Last Modified

Nov 27, 2020

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.3(3)S3 15.4(2)S 15.4(3)SS

Description (partial)

Symptom:
ASR1k PAT may not function properly for PPTP. PPTP control connection is not established.

Conditions:
This was first found in XE3.10.3. The sequence of events which can lead to this failure:

- PPTP ALG is disabled;
- PPTP clients try to connect, but fail;
- PPTP ALG is enabled with "ip nat service pptp";
- PPTP clients are still unable to connect to PPTP server.
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Bug Details Include

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  • Status
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