## RHEL broadcast flag set during DHCP DISCOVER:
(this will tell DHCP server that DHCP response should come as a broadcast BOOT
REPLY)
12:29:42.653772 IP (tos 0x0, ttl 128, id 16963, offset 0, flags [none], proto
UDP (17), length 341)
0.0.0.0.68 > 255.255.255.255.67: [no cksum] BOOTP/DHCP, Request, length
313, htype 32, hlen 0, xid 0x1f49749f, secs 1024, Flags [Broadcast] (0x8000)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Hostname Option 12, length 9: "l-supp-22"
Vendor-Class Option 60, length 8: "MSFT 5.0"
Parameter-Request Option 55, length 13:
Subnet-Mask, Domain-Name, Default-Gateway, Domain-Name-Server
Netbios-Name-Server, Netbios-Node, Netbios-Scope, Router-Discovery
Static-Route, Classless-Static-Route,
Classless-Static-Route-Microsoft, Option 252
Vendor-Option
Client-ID Option 61, length 20: hardware-type 255,
00:00:00:00:00:02:00:00:02:c9:00:00:02:c9:03:00:fc:78:32
END Option 255, length 0
TTL Option 23, length 0
PAD Option 0, length 0, occurs 6
T254 Option 254, length 128: [|rfc1048 128]
## UBUNTU broadcast flag not set during DHCP DISCOVER
06:42:18.949401 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP
(17), length 328)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request, length
300, htype 32, hlen 0, xid 0x52bc6268, secs 17, Flags [none] (0
x0000)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Lease-Time Option 51, length 4: 86400
Parameter-Request Option 55, length 7:
Subnet-Mask, BR, Time-Zone, Default-Gateway
Domain-Name, Domain-Name-Server, Hostname
Client-ID Option 61, length 20: hardware-type 255,
00:00:00:00:00:02:00:00:02:c9:00:f4:52:14:03:00:33:d1:91
END Option 255, length 0
PAD Option 0, length 0, occurs 19
** Changed in: isc-dhcp (Ubuntu)
Assignee: (unassigned) => Rafael David Tinoco (inaddy)
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https://bugs.launchpad.net/bugs/1529815
Title:
InfiniBand DHCP flow with PRA and DHCP relay not working
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