Our network has a site to site vpn connection to a partner company via a leased line out the partner interface. This has been in place and working for the past couple of months.
We recently added a site-to-site VPN connection to a small remote office. From this office I need to be able to access the core network and also some subnets on the partner network.
I can ping/access everything I need to get to on the core, but the connection going to the partner network seems to be one way. I can get packets comming from their network, but sending packets back they get lost on our core 5510.
On the 5510 I do a packet-tracer and it says "Packet dropped" because of an IPSec Spoof Detected. The funny thing is that if i do the same packet-trace but switch the source interface from outside to inside it says it goes through.
Could this be something to do with the interface security levels? The outside is 0, the inside is 100 and the partner is 90.
I can attach debugs/etc if requested. I'm just hoping someone has ran into a scenario like this before.
I believe I already tried the same-security-traffic command...and nothing. The remote site can access the internal network which has a higher security level then the partner, so i figure it would be pretty much the same case.
Attached is the config with public IPs and psswords removed:
DocumentationCode download linksGoalRequirementLimitationsSupported ISR
and UCS-E ModelSupported ISRG2 and UCS-E Blades:Supported ISR4K and
UCS-E Blades:Step by Step ConfigurationConfigure one of the connectivity
options to access the Cisco IMC from the n...
Firepower Threat Defense (NGFWv) on UCS E-series - Transparent Mode in
HA DocumentationCode download linksGoalRequirementLimitationsSupported
ISR and UCS-E ModelSupported ISRG2 and UCS-E Blades:Supported ISR4K and
UCS-E Blades:Step by Step ConfigurationCo...
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