[cs615asa] [cs615]homework5 questions

[byu1]

Hi All,

I have a problem with homework5. Last week I can log into the remote 
syslog server at 2001:470:1c:b8::2 successfully, but today I failed, and 
the system gave me a error message.

[ec2-user at ip-10-244-49-121 ~]$ ssh -i ~/.ssh/stevens-key-new.pem 
byu1 at 2001:470:1c:b8::2
ssh: connect to host 2001:470:1c:b8::2 port 22: No route to host

Can anyone help me to figure it out what the problem is?

Many thanks,
BoYu