dhcpcd link redirected to dhcpd3 after squid install

[sovakle]

After the installation of squid3 and a reboot all my network interfaces were down and impossible to activate ('ifconfig eth0 up' doesn't solve the problem).

Finally I found that the problem was due to a redirection of the the link /etc/alternatives/dhcpcd to /sbin/dhcpcd3 instead of /sbin/dhcpcd5

Restauring the link as follows: /etc/alternatives/dhcpcd -> /sbin/dhcpcd5

solved the problem.

I expenrienced the same problem before with another package but I can't remenber which one (it was related to packages usefull to set up a wifi hotspot, may be hostapd, dnsmasq ... around this thematic).