Friday, April 15, 2022

Re: IKEV2 two devices can connect but only one can make traffic

On 2022-04-12, Łukasz Moskała <lm@lukaszmoskala.pl> wrote:
> I remember talking with network engineer at one company I used to work at.
> We used fortigate firewalls, and I asked why are we using SSLVPN instead of ipsec-based vpn, as both were supported.
>
> He said something along the lines of "ipsec does not work when there are two devices connecting from the same IP so this would be issue for us when two admins were on the same public wifi, or lived together"
>
> I don't know if this is specific to fortinet's implementation, or if it's issue with ipsec itself, as I never used ipsec in anything else than site-to-site connection.

This is not the case with IPsec with NAT-T.


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