Re: [exim] IPv6 address comparison, and callout vs VRFY

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著者: Philip Hazel
日付:  
To: Wouter Verhelst
CC: exim-users, David Woodhouse
題目: Re: [exim] IPv6 address comparison, and callout vs VRFY
On Thu, 18 Nov 2004, Wouter Verhelst wrote:

> grep_remote:
> driver = manualroute
> domains = grep.be
> condition = ${if eq{$sender_host_address}{2001:838:37f::209:6bff:fe27:7db2}{false}{true}}
> route_list = grep.be samba.grep.be
>
> I don't know of any other way to do this


(1) Instead of $sender_host_address, write

${mask:$sender_host_address/128}

and then instead of 2001:838:37f::209:6bff:fe27:7db2 write

2001.0838.037f.0000.0209.6bff.fe27.7db2/128

and this test should then work. (The dots occur because ${mask: is
designed for canonicizing IPv6 addresses for use in lookups, and colon
is the key terminator in lsearch lookups.)

(2) However, I do agree that IPv6 addresses that are supplied to -bh or
-bhc should be canonicized. In the next release, they will always be
expanded to their full form before being put in text form in
$sender_host_address.

Regards,
Philip

-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.