Agressive mode vs Main mode For Anyconnect

[PacketSpartan]

Hopefully, someone can point me towards an article or answer my question 

One of our Customer wants to disable Agressive mode on their firewall, currently their Ipsec vpn uses Main mode so it will not have an effect when we disable it 

My question is - They also have lots of Anyconnect users, will disabling Aggressive mode have any impact on their Anyconnect ?

[Rahul Govindan]

AnyConnect uses SSL or IKEv2 as the transport protocol. The aggressive mode only applies to IKEv1. So you can disable aggressive mode if you are using AnyConnect as the client. 

[PacketSpartan]

Rahul, Thank you for the reply 

I have dealt with Ipsec Vpns but not much with SSL Anyconnect Vpns. From what you mentioned it shouldn't have any effect as they use an any connect client