Re: Learning ipv6 quirks

[Gordon Messmer]

On 6/21/21 6:17 AM, Robert McBroom via users wrote:
> @RobertPC ~]# mount -v -t nfs 
> [fd2e:cb3b:f005::ec1]:/mnt/HD/HD_a2/mcstuffy /mnt/mcstuffy
> mount.nfs: timeout set for Mon Jun 21 06:42:25 2021
> mount.nfs: trying text-based options 
> 'vers=4.2,addr=fd2e:cb3b:f005::ec1,clientaddr=fd2e:cb3b:f005::ec1'
> mount.nfs: mount(2): Connection refused

1: Is the nfs port open on ipv6?  Use "ss -ln | grep :2049" and look for 
a listening port with an IPv6 address, like:

tcp    LISTEN     0      64     [::]:2049 [::]:*

2: Does your firewall allow access to port 2049 on IPv6?  Use 
"firewall-cmd --list-services" and look for "nfs", or use "ip6tables -L" 
and look for the input chain for your default zone (possibly 
IN_public_allow).