[pkg-dhcp-devel] Bug#851503: dhcprelay stops working for bridge-interfaces

Wolfgang Walter wolfgang.walter at stwm.de
Sun Jan 15 17:23:37 UTC 2017


Package: isc-dhcp-relay
Version: 4.3.5-3
Severity: important

After upgrading from 4.3.5-1 to 4.3.5-3 relaying bridge interfaces seem not to work any more:

I have three interfaces A, B, C part of a bridge X.

In /etc/default/isc-dhcp-relay I set

	INTERFACES="X"

After upgrading I get the following errors if a device connected via A makes an dhcp-reqest:

Jan 15 17:38:02 wuschel dhcrelay[1573]: Discarding packet received on A interface that has no IPv4 address assigned.
Jan 15 17:38:02 wuschel dhcrelay[1573]: Discarding packet received on B interface that has no IPv4 address assigned.
Jan 15 17:38:02 wuschel dhcrelay[1573]: Discarding packet received on C interface that has no IPv4 address assigned.

As these interfaces are bridge ports they don't have an IP-address. X has one but dhcprelay seems not consider X any more. Instead it considers B and C where the packet has not been received from.

Downgrading to 4.3.5-1 fixes the problem.

Regards,
-- 
Wolfgang Walter
Studentenwerk München
Anstalt des öffentlichen Rechts



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