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DHCP Client: receive unicast ACKs 80/7880/3
authorNeale Ranns <nranns@cisco.com>
Wed, 2 Aug 2017 12:15:07 +0000 (05:15 -0700)
committerKeith Burns <alagalah@gmail.com>
Thu, 3 Aug 2017 17:00:31 +0000 (17:00 +0000)
despite VPP DHCP client setting neither ciaddr nor giaddr and setting the broadcast bit (see RFC 2131 section 4.1) some DHCP servers will still send a unicast DCHPACK. So as not to drop this VPP must have both 1) a receive FIB entry for the OFFERED IP adress and 2) a 'don't drop me because of uRPF' FIB entry for the DHCP server's address.

Change-Id: I167d858deb45629318cbdccf5bf67d971730a42f
Signed-off-by: Neale Ranns <nranns@cisco.com>

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Vector Packet Processing