We are having trouble testing an HA Scenario with a Static NAT configuration on a pair of Cisco 4351 ISR. A redundancy group has been created, the inside and outside interfaces has been assigned with the redundancy group and the static NAT's with the "redundancy group_number" keyword. The problem we are facing is that the active router doesn't respond to the arp request from the ISP Router neither the standby Router in the active role when we are trying to access the global-ip.
Apparently the static NAT in the HA group is configured:
Router_Active#show ip nat translations redundancy 1 Pro Inside global Inside local Outside local Outside global tcp 10.100.17.63:80 192.168.100.10:80 --- --- Total number of translations: 1
But no ip aliases is created, just the one for the inside:
Router_Active#show ip aliases Address Type IP Address Port Interface 10.10.10.1 Interface 10.10.10.5 Interface 10.10.10.9 Interface 10.100.17.61 Interface 10.100.19.112 Dynamic192.168.100.1 Interface 192.168.100.2
Here is the ARP table of the ISP Router the when we are trying to acces the global-IP of the static NAT:
Router_ISP#show ip arp Protocol Address Age (min) Hardware Addr Type Interface Internet 10.100.17.63 0IncompleteARPA Router_ISP#
And the result of show redundancy of the Active router:
Router_Active#show redundancy application group 1 Group ID:1 Group Name:group1
Administrative State: No Shutdown Aggregate operational state : Up My Role: ACTIVE Peer Role: STANDBY Peer Presence: Yes Peer Comm: Yes Peer Progression Started: Yes
RF Domain: btob-one RF state: ACTIVE Peer RF state: STANDBY HOT
We've searched for any possible misconfiguration with no success.
The IOS version is Denali 16.3.6 (we also tested the configuration onDenali 16.3.7 with no success) and the config's files are attached in this post.
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