Hi!
I'm using two ASR1001-HX with HSRP. Both are running Cisco IOS XE Software, Version 16.03.05. For some reason i need dynamic NAT with overload for some users. Configuration looks like this:
ASR1:
interface BDI10
description INTERNET
ip address {PUBLIC IP.1} 255.255.255.128
ip nat outside
standby version 2
standby 10 ip {PUBLIC IP.3}
standby 10 timers 1 3
standby 10 priority 110
standby 10 preempt
standby 10 name BDI10
cdp enable
ip virtual-reassembly
end
ip nat pool USERS {PUBLIC IP.5} netmask 255.255.255.128
ip nat inside source list 100 pool USERS overload
ASR2:
interface BDI10
description INTERNET
ip address {PUBLIC IP.2} 255.255.255.128
ip nat outside
standby version 2
standby 10 ip {PUBLIC IP.3}
standby 10 timers 1 3
standby 10 preempt
standby 10 name BDI10
cdp enable
ip virtual-reassembly
end
ip nat pool USERS {PUBLIC IP.5} netmask 255.255.255.128
ip nat inside source list 100 pool USERS overload
This configuration works fine a bit of time, and then there is an error occurred in logs:
ASR1:
%IP-4-DUPADDR: Duplicate address {PUBLIC IP.5} on BDI10, sourced by 6cb2.aecb.a1cc <----ASR2 VIP mac address
ASR2:
%IP-4-DUPADDR: Duplicate address {PUBLIC IP.5} on BDI10, sourced by 6cb2.aecb.d1bb <----ASR1 VIP mac address
So my question is how to configure correct NAT on ASR with HSRP without errors?
