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Old 10-24-2014, 10:02 PM   #1
psycroptic
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Registered: Aug 2011
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Distribution: ArchLinux - 3.0 kernel
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Strongswan 5.2.0 - rate limit incoming connection attempts?


Is there any facility within Strongswan to rate limit what appear to be break-in attempts from random IPs, that i am seeing in my logs? Or perhaps a way to do it with iptables on the Strongswan machine?

Code:
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
Oct 24 18:18:45 Gateway ipsec[215]: 02[ENC] header verification failed
Oct 24 18:18:45 Gateway ipsec[215]: 02[NET] received invalid IKE header from 172.56.40.109 - ignored
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