topic Re: Unable to Access the Lab IP shared from Devnet in DevNet Sandbox

Unable to Access the Lab IP shared from Devnet

roliekgeorge — Wed, 29 Sep 2021 13:29:28 GMT

Unable to connect to the devnet lab address using cisco anyconnect, any idea what could be wrong.

Re: Unable to Access the Lab IP shared from Devnet

bigevilbeard — Wed, 29 Sep 2021 13:41:16 GMT

@roliekgeorge i tested with your sandbox details (I used a Mac) and this connects ok for me. Check if the port range will be anywhere from TCP 20100 through TCP 20354 is open from your local network. If that's not working, keep in mind VPNs also use TLS (TCP 443) and DTLS (UDP 443). Though typically these are open in most organizations.

Hope this helps.

Re: Unable to Access the Lab IP shared from Devnet

roliekgeorge — Thu, 30 Sep 2021 07:23:52 GMT

Hi,

Tried with another instance, getting just the same error & verified the ports are open.

Lab Network Address: devnetsandbox-usw1-reservation.cisco.com:20105
Username: roliekgeor
Password: RMHYTJDR

Re: Unable to Access the Lab IP shared from Devnet

roliekgeorge — Thu, 30 Sep 2021 07:45:30 GMT

Somehow the destination IP isn't reachable after Sanjose location.

C:\Users\gbmcm11>nslookup devnetsandbox-usw1-reservation.cisco.com
Server: dns.google
Address: 8.8.8.8

Non-authoritative answer:
Name: devnetsandbox-usw1-reservation.cisco.com
Address: 131.226.217.48

Re: Unable to Access the Lab IP shared from Devnet

bigevilbeard — Thu, 30 Sep 2021 10:20:51 GMT

Hey @roliekgeorge the sandbox headend/gateway IP denies and drops all ICMP by design. Try turning off IPV6 on your WIFI and LAN adaptors - see if this fixes the issue here. I saw these issues with windows before and it worked.

Hope this helps.

Re: Unable to Access the Lab IP shared from Devnet

roliekgeorge — Sun, 03 Oct 2021 08:57:52 GMT

Tried this, still the same.

Re: Unable to Access the Lab IP shared from Devnet

bigevilbeard — Sun, 03 Oct 2021 12:18:01 GMT

@roliekgeorge has your session/reservation ended? - Trying these details will not connect.

Lab Network Address: devnetsandbox-usw1-reservation.cisco.com:20105
Username: roliekgeor
Password: RMHYTJDR

Re: Unable to Access the Lab IP shared from Devnet

roliekgeorge — Sun, 03 Oct 2021 12:44:56 GMT

Not the case, all the sessions were created new and I am aware of the 2 hours expiry time for this specific lab.