SASL Question: How to block !LOCAL_LAN?

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SASL Question: How to block !LOCAL_LAN?
\ Justin Piszcz (29 Aug 2007)
. \ Noel Jones (29 Aug 2007)
. . \ Justin Piszcz (29 Aug 2007)

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Subject:	SASL Question: How to block !LOCAL_LAN?
Group:	Postfix-users
From:	Justin Piszcz
Date:	29 Aug 2007

What is the best way in what smtpd_restriction would I use to disallow all
SASL types of authentication EXCEPT for local lan?

Aug 28 23:53:42 l2 postfix/smtpd[9604]: connect from
unknown[222.183.149.252]
Aug 28 23:53:46 l2 postfix/smtpd[9604]: warning: unknown[222.183.149.252]:
SASL LOGIN authentication failed: authentication failure
Aug 28 23:54:14 l2 last message repeated 2 times
Aug 28 23:54:45 l2 postfix/smtpd[9604]: warning: unknown[222.183.149.252]:
SASL LOGIN authentication failed: authentication failure
Aug 28 23:55:19 l2 postfix/smtpd[9604]: warning: unknown[222.183.149.252]:
SASL LOGIN authentication failed: authentication failure
Aug 28 23:55:39 l2 postfix/smtpd[9604]: too many errors after AUTH from
unknown[222.183.149.252]
Aug 28 23:55:39 l2 postfix/smtpd[9604]: disconnect from
unknown[222.183.149.252]