NX-OS : NAT redundancy HSRP and NAT Static Mapping support with HSRP ?

[tlequertier]

Hello,

i will have to migrate Cisco 6500-VSS (IOS-SUP720) with NEXUS 5672-vPC (NX-OS 7.1).

Do you know how i can migrate the "NAT Redundancy HSRP" and the "NAT Static Mapping Support HSRP" ? 

I saw that NX-OS doesn't support these  kind of functions.

Today the two Cat6500-VSS have HSRP established between two.

In my migration path#1,  i will have One Cat6500-VSS ==== Port-Channel === Nexus 5672UP-vPC with established HSRP between the two.

Nexus 5672UP-vPC is remplacing the first old Cat6500-VSS.

In the final Step i will have Nexus 5672UP-vPC ==== Port-Channel=====Nexus 5672UP-vPC established between the two.

Here below an extract of the configuration i will have to move on NX-OS:

interface Vlan6
! some config removed

 standby 6 ip 145.250.4.142
 standby 6 timers msec 250 1
 standby 6 priority 200
 standby 6 preempt
 standby 6 authentication xxxxx
 standby 6 name hsrp-6
!

ip nat inside source static 10.0.0.1 145.110.0.31 redundancy hsrp-6
ip nat inside source static 10.0.0.2 145.110.0.32 redundancy hsrp-6
------------

Many thanks for your help and advices

[Bilal Nawaz]

So your first step will be to replace one of the C6Ks and replace with N5K as you mention above.

NXOS hsrp config is a little different.

Interface vlan 6

hsrp X

 authentication text xxxxx

 name hsrp-6

 preempt

 priority 200

 ip 145.250.4.142

 timers msec 250 1

With NAT you can do static nat, but you must follow the guidlines here: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5600/sw/interfaces/7x/b_5600_Interfaces_Config_Guide_Release_7x/b_6k_Interfaces_Config_Guide_Release_7x_chapter_01000.html#concept_B131AADEDAB0494CAC5BFD9634323FAF

Im not sure if it can be used with HSRP or not.

Hope this helps.

[tlequertier]

Thanks Bilal for your answer but it really about the IOS "NAT Redundancy with HSRP" and "NAT Static Mapping HSRP" that i try to know how to migrate in NX-OS. So how to handle (NAT+HSRP) with NX-OS?

[Bilal Nawaz]

I know there might be some support for it on N3Ks, but I'm not too sure with N5K's. I haven't seen any documentation stating that it does.