Those who wish to use the EECS LDAP servers from off-campus (for example, to use it for address book lookups in their mail program) can still access it by first running [the campus VPN](https://technology.berkeley.edu/services/accounts-and-access/remote-access-vpn).
This is not a general block on ports 389 / 636, but only applies to connections to ldap.eecs.berkeley.edu.
Please direct any questions to the IRIS helpdesk at help@eecs.berkeley.edu.
UPDATE
[2018-03-14 10:40:45 | Rob McNicholas]
The firewall blocks have been implemented. ldap.eecs.berkeley.edu is no longer reachable from hosts outside the UCB Networks. Please report any problems to help@eecs.berkeley.edu.