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The Graveyard - Products No Longer Supported => D-Link NetDefend Firewalls => Topic started by: finair on August 23, 2012, 09:00:08 AM

Title: DFL-260E issue. SIP ALG drop "Ringing"
Post by: finair on August 23, 2012, 09:00:08 AM

Hello

DFL260E (2.40.01.08-17758) with NAT/SAT and SIP ALG.

Problem description:

During incoming call DFL260E drops INVITE with 180 Ringing message.

So incoming caller does not hear ringing tones before answer.

Everything else works well.

Log message provide some information but what can I do?

link to logs&settings

http://dl.dropbox.com/u/7701500/dfl260e_mf_200812.txt
http://dl.dropbox.com/u/7701500/dfl260e.JPG

failed_to_modify_response - drop.

2.1.238. failed_to_modify_response (ID: 00200559)
Default Severity ERROR
Log Message SIPALG: Failed to modify the response
Explanation Failed to modify the topology info in the [method] response.
Gateway Action drop
Recommended Action None.
Revision 2
Parameters method
from_uri
to_uri
srcip
srcport
destip
destport
Context Parameters ALG Module Name


May be we can change SIP ALG rule to pass such packets?


Could anybody help us with this problem?

As I understand SIP is a really big problem for DLINK support team.