IC72912: MULTI-PROTOCOL GATEWAY MAY CREATE INVALID VIA HEADER ENTRIES.

APAR status

• Closed as program error.

Error description

• If DataPower creates a Via header for the backend server
  containing a "=" or "/" character the backend application may
  fail. Based on the Via header specs, "=" and "/" are not valid
  characters.
  

Local fix

• Use DataPower's <dp:remove-http-request-header name="Via"/>
  function to remove the specific header.
  

Problem summary

• Affected are customers using a Multi-Protocol Gateway for
  accessing a backend server.
  
  The "Via" header field DataPower sends to the backend may
  contain characters "/" or "=" which are forbidden characters for
  the "Via" header by RFC2616.
  
  The Multip-Protocol Gateway sends a pseudonym in the Via header
  which is a base64 encoded string and therefore may contain "/"
  or "=".
  

Problem conclusion

• "/" and "=" are replaced by valid pseudonym characters "!"
  and "-" in the "Via" header.
  
  Fix is available in 3.7.3.16, 3.8.0.10, 3.8.1.9 and 3.8.2.1
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  DATAPWER B2B XB

• Fixed component ID

  DP1234B2B

Applicable component levels

• R373 PSY

     UP

• R380 PSY

     UP

• R381 PSY

     UP