ā07-18-2018 06:35 PM - edited ā06-22-2020 11:59 PM
Hi,
Last 2 day, network cable between ASA and SW faulty, thus we have changed it.
but after that , weird think is email not able to send/receive and unable to open google.com, gmail.com
the user using smtp.gmail.com & pop.gmail.com
other URL website able to open.
weird ??
anyone can help
attached is the config
Solved! Go to Solution.
ā08-07-2018 06:07 PM
just to update
the issues is resolved.
the resolution is have to manually use Google DNS in order the traffic to go through.
Just a little bit weird,
ā07-18-2018 07:10 PM
can you ping fw, and 8.8.8.8?
ā07-18-2018 07:30 PM
from the PC, unable to ping 8.8.8.8
but from the ASA console able to ping 8.8.8.8 & 8.8.4.4
ā07-18-2018 10:07 PM
can you ping the internal ip address of the asa from PC?
ā07-18-2018 10:16 PM - edited ā07-18-2018 10:17 PM
yes, we can
pls note that, PC able to access all website except google & gmail
which is not logic at all...
ā07-24-2018 08:01 AM
If you can access everything except google products, then there could be a few things going on, few of which are firewall related.
1. The hosts file could be corrupt on the host. Does DNS resolve for these sites?
2. Your NATed IP could be blacklisted by Google
3. Your firewall could have a shun for some critical google IP.
show shun
4. There is a corrupt session in the browser. Try a private window.
Personally, I would t-shoot this with a packet capture on the firewall and examine the results in Wireshark.
ā08-07-2018 06:07 PM
just to update
the issues is resolved.
the resolution is have to manually use Google DNS in order the traffic to go through.
Just a little bit weird,
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