We have ASA 5520 in our network. Blue Coat (SG 510) is connected behind the ASA for web filtering. Blue Coat is configured as transparent device.
Blue Coat IP is 10.138.74.5.
Now the problem is from last one moth I am getting high BW utilization issue. Whenever I have connected the Blue Coat the BW utilization increased very high.
We have 4 MB internet link and sometimes it choke the entire BW. If I removed the Blue Coat everything normalized and working fine.
To resolve this issue I checked with Blue Coat vendor and after long experiment they told that problem with ASA configuration.
In Blue Coat logs we are getting lots public ip which should show internal ip only.
I have checked my ASA access-list configuration and didn't get anything wrong.In my ASA I have access-list configured for inbound access in Outside interface only.
I have attached my ASA configuration and Blue Coat logs.
Any kind of help would be appreciatedâ¦.
Hi, Can you try configuring the Web Access Layer rules as per below:
1 Allow only your inside IP subnets to Any Destination
2 Deny any(source) any(Destination)