Networking weirdness


A client has a weird problem. They have a class A network, let's call it They have an ASA5525-X with Firepower.

An internal workstation like cannot ping or browse to an internal web server load balanced over two real servers, and All have the right subnet mask, gateways and DNS servers. While at the same time, another workstation like can access the webserver. We've looked at the routes on both and they are identical. However, a packet-tracer on the ASA fails for both workstations. To complicate things, another workstation which could not access the website on Friday, can today.

The packet-tracer output:

firewall/pri/act# packet-tracer input inside tcp 2938 80

Phase: 1
Subtype: Resolve Egress Interface
Result: ALLOW
Additional Information:
found next-hop using egress ifc  inside

Phase: 2
Type: UN-NAT
Subtype: static
Result: ALLOW
nat (inside,any) source static any any destination static obj- obj- no-proxy-arp route-lookup
Additional Information:
NAT divert to egress interface inside
Untranslate to

Phase: 3
Result: DROP
Implicit Rule
Additional Information:

output-interface: inside
output-status: up
output-line-status: up
Action: drop

Please help. Thank you.
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atlas_shudderedSr. Network EngineerCommented:
What are the masks of the on the and hosts
netcmhAuthor Commented:
netcmhAuthor Commented:
Please ignore. Hair pining was not implement correctly. Same-security-traffic permit intra-interface fixed the issue.

Sorry for bothering you.

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netcmhAuthor Commented:
Figured out what the issue was. Fix is listed above.
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