awk print second line after search string

Shell Programming and Scripting
1

I have multiple config files where I need to pull the ip address from loopback3. The format is the same in every file, the ip is the second line after interface loopback3.

 interface loopback2 loopback
  description router ID
  ip address 192.168.1.1
 interface loopback3 loopback
  description ID:Management
  ip address 10.1.1.1
 interface loopback4 loopback
  ip address 10.2.1.1

I need the output to be:

10.1.1.1
2 
awk '/loopback3/{getline;getline;print $3}' file
3 
nawk '$2=="loopback3" {c=3}c>0 &&!--c{print $3}' myFile
4

Thank you bartus11, I had no idea about the "getline" function in awk. Works like a charm.

Thanks to you also vgersh99, both methods do the job.