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Cisco Bug: CSCvv12282 - Document the limitation of SGSN CLI dns-extn lac-rac fallback

Last Modified

Jul 24, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.5.12

Description (partial)

Symptom:
As per documentation "dns-extn lac-rac fallback" says 

SGSN will send APN query with lac-rac extension and if its fail , SGSN will send DNS query with APN name alone without lac-rac extension .

Its working as expected normally . But if we define gateway-address as below , then SGSN is not trying fallback . 
This has to be documented

Conditions:
As per documentation "dns-extn lac-rac fallback" says 

SGSN will send APN query with lac-rac extension and if its fail , SGSN will send DNS query with APN name alone without lac-rac extension .

Its working as expected normally . But if we define gateway-address as below , then SGSN is not trying fallback . 
This has to be documented
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