ASA transparent mode with secondary IP on the router

Answered Question
Aug 4th, 2008

Hi

I have

Router --- ASA (Transparent)----Switch

and just wonder if it is possible to configure secondary IP on the router interface which is connected to ASA

so there is plenty of room in terms of LAN IP range.

Or to implement this, do I have change ASA to context mode and modify configuration on the ASA?

hope I do not have to change anything on the ASA.

Thanks

I have this problem too.
0 votes
Correct Answer by Marwan ALshawi about 8 years 4 months ago

ASA in transparant mode work as L2 device

so what ever ips u use dosent matter

u dont need to change anything in the ASA while it is in transperant mod

but be careful of what is allowed to be passed through the firewall

u can control it by ACLs

the router and the switch u have will operat in L3 as thy connected directly or nothing between them from routing and layer three prespective

so they shoud be in the same subnet VLAN and so on

good lcuk

please, if helpful rate

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Loading.
Correct Answer
Marwan ALshawi Mon, 08/04/2008 - 19:07

ASA in transparant mode work as L2 device

so what ever ips u use dosent matter

u dont need to change anything in the ASA while it is in transperant mod

but be careful of what is allowed to be passed through the firewall

u can control it by ACLs

the router and the switch u have will operat in L3 as thy connected directly or nothing between them from routing and layer three prespective

so they shoud be in the same subnet VLAN and so on

good lcuk

please, if helpful rate

Actions

This Discussion