09-16-2020 02:20 PM
If I ping tools.cisco.com it is successful via ipv4:
ROUTER# ping tools.cisco.com
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 173.37.145.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 62/62/63 ms
But if I try to telnet to tools.cisco.com port 443 I get an ipv6 name lookup! I'm not running ipv6 anywhere on this router:
ROUTER#telnet tools.cisco.com 443
Trying 2001:420:1101:5::A, 443 ...
% Destination unreachable; gateway or host down
ROUTER#
What the heck is going on?
--<snip> --
ip name-server <my internal dns ipv4 address>
ip domain lookup source-interface Loopback0
ip domain name <my internal domain name>
http client source interface Loopback0
interface Loopback0
ip address 10.255.0.136 255.255.255.255
end
02-08-2022 08:59 AM
Got anygthing on this anyone?
02-08-2022 02:00 PM
Hello,
I looked at some other posts, somebody suggests to configure:
call-home/http resolve-hostname ipv4-first
and explicitly disable (no ipv6 enable) on the interfaces.
02-09-2022 12:59 PM
Hi Georg,
I've already did all that. I also tried to change the server in the http url for the IP address of the server, but still stuck with the same error (205)
Thanks for your answer. Have a nice day.
02-12-2022 11:03 AM
Hello,
sorry for the late reply. I cannot TELNET to the site at all. What if you configure a host entry in your router:
ip host tools.cisco.com 173.37.145.8
I wonder if the site is up at all...
02-15-2022 07:09 AM
please use below command to check
telnet tools.cisco.com 443 /ipv4
you wll get correct result
also try below command
no service call-home
no call-home
service call-home
call-home
http resolve-hostname ipv4-first
02-21-2022 10:33 AM
HI
telnet tools.cisco.com 23 /ipv4
Work on an old CSR 1000V.
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