Hello
we have some hosts setup with reservations , which are instead
getting a pool address.
this printer which should have 10.1.25.132 but got 10.1.25.183 . this
printer and another get used overnight so we had to temporarily
change the IP address at the cups print server . *
*
In the mean time we'll look at the programming on some of our
recently replaced managed switches. I suspect pvid is incorrect on
some ports or dhcp relay setting... I had been working on network
security settings - like limiting which vlans are accessible from
some downstream switches..
in addition we use proxmox to manage our virtual machines. all debian
KVM's which used dhcp-client had wrong addresses . windows are okay.
LXC's are okay. a lot of testing and debugging was done. details are
at
https://forum.proxmox.com/threads/dhcp-issue-with-kvm-lxc-does-not-have-the-issue.159440/#post-731975
here is some debugging info for a host that has this reservation. *If
anyone has I suggestion on where to look to solve the issue I am all
ears*! [ except the next 7 hours for sleep.]
{
"hostname": "p132.fantinibakery.com",
"ip-address": "10.1.25.132",
"hw-address": "*b4:22:00:26:35:b5*"
},
sudo tcpdump -i eth0 port 67 or port 68 -e -n -vv
10.1.25.132 p132.fantinibakery.com p132
the following s/b p132:
18:55:34 ALLOC_ENGINE_V4_DISCOVER_ADDRESS_CONFLICT [hwtype=1
b4:22:00:26:35:b5], cid=[01:b4:22:00:26:35:b5], tid=0x1237:
conflicting reservation for address 10.1.25.132 with existing lease
Address: 10.1.25.132
Valid life: 604800
Cltt: 1734607378
Hardware addr: *b4:22:00:26:35:b5*
Client id: 01:b4:22:00:26:35:b5
Subnet ID: 17
Pool ID: 0
State: default
Relay ID: (none)
Remote ID: (none)
19:02:21.603380 1c:34:da:f4:05:0e > bc:24:11:e2:1d:b8, ethertype IPv4
(0x0800), length 355: (tos 0x0, ttl 64, id 59862, offset 0, flags
[DF], pro
to UDP (17), length 341)
10.1.3.202.67 > 10.1.3.15.67: [udp sum ok] BOOTP/DHCP, Request from
*b4:22:00:26:35:b5*, length 313, hops 1, xid 0xdc07, Flags [none]
(0x0000)
Gateway-IP 10.1.25.9
Client-Ethernet-Address b4:22:00:26:35:b5
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message (53), length 1: Discover
Client-ID (61), length 7: ether b4:22:00:26:35:b5
Hostname (12), length 15: "BRNB422002635B5"
Parameter-Request (55), length 11:
Domain-Name-Server (6), Default-Gateway (3), Subnet-Mask (1),
Domain-Name (15)
TFTP (66), BF (67), BS (13), Netbios-Name-Server (44)
Time-Zone (2), NTP (42), Hostname (12)
Agent-Information (82), length 28:
Circuit-ID SubOption 1, length 6: bond19
Remote-ID SubOption 2, length 18: 1c:34:da:f4:05:00^J
19:02:21.604284 bc:24:11:e2:1d:b8 > 1c:34:da:f4:05:0e, ethertype IPv4
(0x0800), length 418: (tos 0x10, ttl 128, id 0, offset 0, flags [DF],
proto
UDP (17), length 404)
10.1.3.15.67 > 10.1.25.9.67: [udp sum ok] BOOTP/DHCP, Reply, length
376, hops 1, xid 0xdc07, Flags [none] (0x0000)
*Your-IP 10.1.25.183 *
Gateway-IP 10.1.25.9
Client-Ethernet-Address b4:22:00:26:35:b5
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message (53), length 1: Offer
Subnet-Mask (1), length 4: 255.255.255.0
Time-Zone (2), length 4: -5
Default-Gateway (3), length 4: 10.1.25.1
Domain-Name-Server (6), length 12: 127.0.0.1,10.1.3.41,10.1.3.40
Hostname (12), length 22: "p132.fantinibakery.com"
Domain-Name (15), length 17: "fantinibakery.com"
NTP (42), length 4: 10.1.0.2
Lease-Time (51), length 4: 604800
Server-ID (54), length 4: 10.1.3.15
Client-ID (61), length 7: ether b4:22:00:26:35:b5
Agent-Information (82), length 28:
Circuit-ID SubOption 1, length 6: bond19
Remote-ID SubOption 2, length 18: 1c:34:da:f4:05:00^J
