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scorpa_121336's avatar
scorpa_121336
Icon for Nimbostratus rankNimbostratus
Oct 23, 2014

F5 apm ACL ACES bypassed

Hello folks!   I'm having strange problem on one of our BigIP with SSL VPN. We are using APM to provide SSL VPN and assign ACL to control user behavior on L4. In access policy we authenticate user...
application delivery
BIG-IP Access Policy Manager (APM)
deployment
devops
iRules
security
TMSH
  • kunjan_118660's avatar
    kunjan_118660
    Oct 27, 2014

    It seems like some other VS is catching the traffic instead of internal built-in APM virtual(_tmm_apm_fwd_vip).

     

    Try to do a tcpdump (tcpdump -ns0 -i 0.0:nnn) which can verify this.

     

    I guess you also might see the problem of ACCESS_ACL_ALLOWED event not triggered because of this issue.

     

scorpa_121336's avatar
scorpa_121336
Icon for Nimbostratus rankNimbostratus
Oct 23, 2014

Yes, i'm sure.

 

For example if we have phone with edge gateway, you cannot ping internal resources obviously, but after tunnel has been established - you can reach anything except resources on port 80... And by the way, if i understand correctly ACL should work before traffic will be routed via F5 so in any case traffic must be processed by acl but it's not.