Hi,
Refering to attached network diagram in which we have ASG -425, Extreme Alpine 3804, L4 core switch, exchange server and other 5 servers.
We faced the following problem : e-mails can't be sent if the gatway of the exchange server and other servers was set to the Core switch
(IP address 10.254.1.1 ) while ASG-425 (Ip address = 10.254.1.250) is set as the coreswitch gateway.
Although we can still receive emails through SMTP proxy and browse Internet through HTTP proxy in ASG-425.
If the Gatway of the exchange server is changed to ASG-425 IP address, then emails can be sent and received without any problem.
Our client already have an ISA server which they need to replace with ASG-425, the ISA setup is working fine with L4 core switch
However, the customer insists on keeping his current routing setup where the gatway of the exchange server is the L4 core switch not the ASG.
Thank you in advance!
Rahma
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