topic Can't connect to devnetsandbox-emea-gwy.cisco.com in DevNet Sandbox

Can't connect to devnetsandbox-emea-gwy.cisco.com

mohaddad — Thu, 16 Jul 2020 13:50:08 GMT

Hi,

I tried to connect to devnetsandbox-emea-gwy.cisco.com:20209 from more than one location , but getting following error:

Connection attempt has failed

% ping devnetsandbox-emea-gwy.cisco.com
PING devnetsandbox-emea-gwy.cisco.com (173.38.221.89): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Request timeout for icmp_seq 4
Request timeout for icmp_seq 5
^C
--- devnetsandbox-emea-gwy.cisco.com ping statistics ---
7 packets transmitted, 0 packets received, 100.0% packet loss

I have attached screenshot of any connect message history.

Thank you

Re: Can't connect to devnetsandbox-emea-gwy.cisco.com

bigevilbeard — Thu, 16 Jul 2020 16:54:42 GMT

Hello, Sandbox VPN gateway will not reply to ICMP/ping by design. Check to see if the ports are blocked from your SRC. The port range will be anywhere from TCP 20100 through TCP 20354. Give that a try and you should be good to go. 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: Can't connect to devnetsandbox-emea-gwy.cisco.com

mohaddad — Thu, 16 Jul 2020 17:49:05 GMT

Hi,

I have confirmed that outbound traffic is allowed, but still can't connect to devnetsandbox-emea-gwy.cisco.com using anyconnect, I think the issue is with VPN termination point

% telnet devnetsandbox-emea-gwy.cisco.com 20209
Trying 173.38.221.89...
Connected to devnetsandbox-emea-gwy.cisco.com.
Escape character is '^]

Thank you,

Re: Can't connect to devnetsandbox-emea-gwy.cisco.com

bigevilbeard — Fri, 17 Jul 2020 12:19:47 GMT

Try tethering of your cell or via another provider

(venv) $ telnet devnetsandbox-emea-gwy.cisco.com 20209
Trying 173.38.221.89...
Connected to devnetsandbox-emea-gwy.cisco.com.
Escape character is '^]'.
^CConnection closed by foreign host.

Hope this helps.

Re: Can't connect to devnetsandbox-emea-gwy.cisco.com

akshayvaiti — Tue, 21 Jul 2020 06:30:02 GMT

Same issue have been facing by me also not sure what is issue