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Cipher Rules And Groups in BIG-IP v13

My mother used to always tell me two things before I left for school in the morning. Be wary of what ciphers your application supports Never use the Default cipher list unless you have compatibi...
application delivery
BIG-IP
ciphersuites
dcsecurity17
LTM
security
Chase_Abbott's avatar
Chase_Abbott
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dragonflymr's avatar
dragonflymr
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Jun 07, 2018

Hi,

 

I did the same test (13.1.0.6 on VE) as Chase and no live update :-(

 

Steps:

 

  • Client SSL profile with cache disbaled
  • Group with only f5-ecc assigned
  • Rule with only ECDHE:ECDHE_ECDSA created and assigned to Restrict in group
  • nmap test - TLSv1.0, 1.1 and 1.2 ciphers listed
  • Edited rule with :!TLSv1:!TLSv1_1
  • nmap test - still ciphers for all protocols listed (but when checking in group not TLSv1.0 and 1.1 ciphers present)
  • Edited VS by changing client ssl profile to some other and then back to original
  • nmap test - now only TLSv1.2 cipher listed.

Piotr

 

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