topic Betreff: Cant access Global protect vpn through vodafone dsl in GlobalProtect Discussions

Cant access Global protect vpn through vodafone dsl

himanshu.3333 — Wed, 30 Oct 2024 15:28:23 GMT

Hi Team, I am using vodafone dsl connection. Recently i joined a new company and have to use global connect vpn. somehow the vpn does not works from my vodafone wifi.

I checked with my office folks and looks like the issues is from vodafone dsl side. now vodafone assign ipv4 through ds lite and have ipv6 public address

I asked them this may be a issue related to assigning me more ipv4 address and they are signing everyone is on ipv6, ipv4 is 25 years old technology.

I also tried to reduce the MTU to 1200 and did all trouble shooting steps.

Please help me hpw do i access global protech vpn as my work has stopped now. If my isp needs to provide solution tell me what needs to be done

Re: Cant access Global protect vpn through vodafone dsl

himanshu.3333 — Wed, 30 Oct 2024 15:48:31 GMT

Team, any one please help how do i login to global protect vpn now?

Re: Cant access Global protect vpn through vodafone dsl

arusharma — Thu, 31 Oct 2024 03:38:39 GMT

MTU you have already tried try disabling IPV6 on your laptop completely. It sounds more of ISP issue.

Re: Cant access Global protect vpn through vodafone dsl

himanshu.3333 — Thu, 31 Oct 2024 07:09:17 GMT

ISP is saying ipv4 is 2 decades old technology cant help much on this

already tried disabling ipv6 then internet does not works

is there a work around now

Betreff: Cant access Global protect vpn through vodafone dsl

MikeHinz — Thu, 31 Oct 2024 07:53:06 GMT

Hello,

We had a similar issue for one of our employees who uses a Vodafone connection.

We fixed it for him by setting a fixed MTU size in the App configuration:

"GlobalProtect Connection MTU (bytes)" set to 1300

Re: Cant access Global protect vpn through vodafone dsl

himanshu.3333 — Thu, 31 Oct 2024 08:10:59 GMT

MTU thing did not work 😞

Betreff: Cant access Global protect vpn through vodafone dsl

MikeHinz — Thu, 31 Oct 2024 14:28:49 GMT

Hello,

Did your IT staff change that setting for you in their global protect configuration on their firewall or did you try to change the mtu size on your local pc? My suggestion concerns a change in the global protect configuration on the firewall!

Betreff: Cant access Global protect vpn through vodafone dsl

arusharma — Fri, 01 Nov 2024 04:07:41 GMT

Normally reducing MTU should fix the issue. Where did you change the MTU locally on the client or GP portal configuration? It should be changed on the portal.

Betreff: Cant access Global protect vpn through vodafone dsl

MikeHinz — Mon, 04 Nov 2024 06:17:46 GMT

Hello,

Just look under your configuration in the firewall:

Network -> GlobalProtect -> Portals -> Select your portal

Agent -> Select your Agent configuration -> App -> GlobalProtect Connection MTU (bytes) -> set to 1300

Betreff: Cant access Global protect vpn through vodafone dsl

andreas.pohl — Fri, 06 Jun 2025 08:35:45 GMT

Hallo,
Falls das Problem noch aktuell ist:
Bei uns hat es geholfen den Plobal Protect VPN-Tunnel von IPSEC auf SSL zu stellen.
Das geht entweder im Global-Protect-Client oder auf der Firewall in den Agenteneinstellungen.

Re: Cant access Global protect vpn through vodafone dsl

M.Falk310364 — Mon, 16 Jun 2025 10:36:17 GMT

we had to change it to 1280 to get our customers to work with Vodafone in Germany. Also on interface (Portal & Gateway) in Palo we had to publish an ipv6 Adress to get it work.