Multiple IP reservations

knk

New Member
Mar 27, 2022
1
0
1
Hello,
I have just created my brand new and clean proxmox lab. Few VMs, still WiP, nothing special. It is worth to mention, than I have changed my home network setup as well - I completly replaced ubiquity hardware with mikrotik solution, no migrations, pure setup from scratch, both for HW and config.

The strange thing I noticed is multiple IP reservation on my DHCP server - all of them are from single and only proxmox node. Even with 1-day DHCP reservation all non-static leases are reneving IP every few seconds. And none of this IPs are assigned to VM - each VM has own static IP lease and it looks and works great.

Here is a screenshot from DHCP leases:
DHCP.png

Interfaces configuration looks pretty correct and simple (NICs enp2s0 amd enp3s0 are non used PCI-E cards and I haven't noticed any issues on previous PVE installation):
Code:
auto lo
iface lo inet loopback

iface eno1 inet manual

iface enp2s0 inet manual

iface enp3s0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 10.1.1.100/24
        gateway 10.1.1.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0

But the ip a command returns bunch of strange entries:
Code:
root@lab1:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether XX:XX:X:XX:XX:XX brd ff:ff:ff:ff:ff:ff
3: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether XX:XX:X:XX:XX:XX brd ff:ff:ff:ff:ff:ff
4: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
    link/ether XX:XX:X:XX:XX:XX brd ff:ff:ff:ff:ff:ff
    altname enp0s25
    inet 10.1.1.100/24 brd 10.1.1.255 scope global dynamic eno1
       valid_lft 78020sec preferred_lft 78020sec
5: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/etherXX:XX:X:XX:XX:XX brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.100/24 scope global dynamic vmbr0
       valid_lft 79737sec preferred_lft 79737sec
    inet6 fe80::6651:6ff:fe52:fe94/64 scope link 
       valid_lft forever preferred_lft forever
6: tap101i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr101i0 state UNKNOWN group default qlen 1000
    link/ether 22:ba:c6:7f:83:96 brd ff:ff:ff:ff:ff:ff
7: fwbr101i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 0a:96:de:e3:90:0d brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.20/24 brd 10.1.1.255 scope global dynamic fwbr101i0
       valid_lft 43193sec preferred_lft 43193sec
8: fwpr101p0@fwln101i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 0a:fa:66:7f:83:15 brd ff:ff:ff:ff:ff:ff
9: fwln101i0@fwpr101p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr101i0 state UP group default qlen 1000
    link/ether ea:64:43:5c:ed:33 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.4/24 brd 10.1.1.255 scope global dynamic fwln101i0
       valid_lft 43193sec preferred_lft 43193sec
10: tap102i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr102i0 state UNKNOWN group default qlen 1000
    link/ether 02:11:a7:97:b4:76 brd ff:ff:ff:ff:ff:ff
11: fwbr102i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 32:bb:1c:f2:d6:24 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.17/24 brd 10.1.1.255 scope global dynamic fwbr102i0
       valid_lft 43193sec preferred_lft 43193sec
12: fwpr102p0@fwln102i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether b6:c2:75:96:e7:ed brd ff:ff:ff:ff:ff:ff
13: fwln102i0@fwpr102p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr102i0 state UP group default qlen 1000
    link/ether ee:ad:9d:59:26:e2 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.21/24 brd 10.1.1.255 scope global dynamic fwln102i0
       valid_lft 43193sec preferred_lft 43193sec
14: tap105i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr105i0 state UNKNOWN group default qlen 1000
    link/ether b2:76:b8:7c:f1:56 brd ff:ff:ff:ff:ff:ff
15: fwbr105i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether ba:af:66:4c:98:ba brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.3/24 brd 10.1.1.255 scope global dynamic fwbr105i0
       valid_lft 43193sec preferred_lft 43193sec
16: fwpr105p0@fwln105i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether 3a:f0:e0:39:36:c5 brd ff:ff:ff:ff:ff:ff
17: fwln105i0@fwpr105p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr105i0 state UP group default qlen 1000
    link/ether de:94:32:ca:d6:e9 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.19/24 brd 10.1.1.255 scope global dynamic fwln105i0
       valid_lft 43193sec preferred_lft 43193sec
18: tap110i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr110i0 state UNKNOWN group default qlen 1000
    link/ether 7e:4b:2a:03:1f:85 brd ff:ff:ff:ff:ff:ff
19: fwbr110i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether ba:dd:7d:71:60:36 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.14/24 brd 10.1.1.255 scope global dynamic fwbr110i0
       valid_lft 43193sec preferred_lft 43193sec
20: fwpr110p0@fwln110i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether ee:34:03:23:9c:c0 brd ff:ff:ff:ff:ff:ff
21: fwln110i0@fwpr110p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr110i0 state UP group default qlen 1000
    link/ether 7e:9f:d3:c1:33:37 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.18/24 brd 10.1.1.255 scope global dynamic fwln110i0
       valid_lft 43193sec preferred_lft 43193sec
Do anyone have any idea what am I doing wrong? Is something missconfigured? Restart or reset doesn't help at all, I'm thinking about VMs backup and fresh proxmox installation, but I would understand my fault first to avoid such problems in future.

Cheers,
knk
 

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