www/106489: ftp4.freebsd.org has IPv6 IP

[Michael Richardson]

>Number:         106489
>Category:       www
>Synopsis:       ftp4.freebsd.org has IPv6 IP
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-www
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Fri Dec 08 18:40:10 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Michael Richardson
>Release:        N/A
>Organization:
Sandelman Software Works
>Environment:
FreeBSD catfish.sandelman.ca 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Thu Nov 30 14:56:15 EST 2006     mcr at catfish.sandelman.ca:/.amd_mnt/istari/host/i/hifn/ipcompfix/i386/compile/IPCOMP  i386

>Description:
trying to access ftp.freebsd.org from a machine that apparently has some broken
IPv6 connectivity. I tried "ftp ftp4.freebsd.org" to force IPv4 instead.
I was surprised to get an IPv6 address returned.

Not everyone's FTP program has -4.

>How-To-Repeat:
catfish-[~] mcr 1001 %ftp ftp.freebsd.org
Trying 2001:4f8:0:2::e...
^C

catfish-[~] mcr 1002 %ftp ftp4.freebsd.org
Trying 2001:4f8:0:2::e...
^C

catfish-[~] mcr 1003 %ftp -4 ftp4.freebsd.org
Connected to freebsd.isc.org.
220 Welcome to freebsd.isc.org.
Name (ftp4.freebsd.org:mcr): ftp 

>Fix:
don't CNAME to freebsd.isc.org, instead, get a "freebsd4.isc.org", or copy
the IPs, like on ftp.freebsd.org.

>Release-Note:
>Audit-Trail:
>Unformatted: