How to exclude the block code for translation from a text file

Here is only a snippet of the text file below,

In the following example code block, the IP ranges are different:

----
cluster_A::> network subnet show

IPspace: Default
Subnet Broadcast Avail/
Name Subnet Domain Gateway Total Ranges
--------- ---------------- --------- ------------ ------- ---------------
subnet1 192.168.2.0/24 Default 192.168.2.1 10/10 192.168.2.11-192.168.2.20

cluster_B::> network subnet show
IPspace: Default
Subnet Broadcast Avail/
Name Subnet Domain Gateway Total Ranges
--------- ---------------- --------- ------------ -------- ---------------
subnet1 192.168.2.0/24 Default 192.168.2.1 10/10 192.168.2.21-192.168.2.30
----

The code block between the start and end ---- need to be excluded for translation, how to do that in the regular expression delimited text filetype?