Hi again,
I’ve been sniffing some packets from the proxmox machine:
root@pve:~# tcpdump -v -e -i enp0s3 -n vlan and port 67 or 68
tcpdump: listening on enp0s3, link-type EN10MB (Ethernet), capture size 262144 bytes
11:47:16.040578 4a:9e:1b:95:5c:29 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 346: vlan 100, p 0, ethertype IPv4, (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: BOOTP/DHCP, Request from 4a:9e:1b:95:5c:29, length 300, xid 0x50298735, Flags [none]
Client-Ethernet-Address 4a:9e:1b:95:5c:29
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Request
Requested-IP Option 50, length 4: 192.168.100.200
Hostname Option 12, length 15: "isolan-100-test"
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Default-Gateway
Domain-Name, Domain-Name-Server, Option 119, Hostname
Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route
NTP
11:47:16.043501 cc:2d:e0:1b:45:b9 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 346: vlan 100, p 0, ethertype IPv4, (tos 0x0, ttl 16, id 0, offset 0, flags [none], proto UDP (17), length 328)
192.168.100.1.67 > 255.255.255.255.68: BOOTP/DHCP, Reply, length 300, xid 0x50298735, Flags [none]
Your-IP 192.168.100.200
Server-IP 192.168.100.1
Client-Ethernet-Address 4a:9e:1b:95:5c:29
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: ACK
Server-ID Option 54, length 4: 192.168.100.1
Lease-Time Option 51, length 4: 604800
Subnet-Mask Option 1, length 4: 255.255.255.0
Default-Gateway Option 3, length 4: 192.168.100.1
Domain-Name Option 15, length 12: "lomio.isolan"
Domain-Name-Server Option 6, length 4: 8.8.8.8
NTP Option 42, length 8: 178.255.228.77,109.74.206.120
- (FAIL) Ping to 192.168.100.1
root@pve:~# tcpdump -v -e -i enp0s3 -n vlan
tcpdump: listening on enp0s3, link-type EN10MB (Ethernet), capture size 262144 bytes
11:49:58.494482 4a:9e:1b:95:5c:29 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 46: vlan 100, p 0, ethertype ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.100.1 tell 192.168.100.200, length 28
11:49:59.498697 4a:9e:1b:95:5c:29 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 46: vlan 100, p 0, ethertype ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.100.1 tell 192.168.100.200, length 28
11:50:00.522806 4a:9e:1b:95:5c:29 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 46: vlan 100, p 0, ethertype ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.100.1 tell 192.168.100.200, length 28
- (FAIL) Ping from mikrotik to 192.168.100.200 using the GUI (Tools->Ping) through the “vlan-bridge-LAN-ISOLAN-100” interface. Only these two packets below.
root@pve:~# tcpdump -v -e -i enp0s3 -n vlan
tcpdump: listening on enp0s3, link-type EN10MB (Ethernet), capture size 262144 bytes
11:51:33.783534 cc:2d:e0:1b:45:b9 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 64: vlan 100, p 0, ethertype ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.100.200 tell 192.168.100.1, length 46
11:51:33.783624 4a:9e:1b:95:5c:29 > cc:2d:e0:1b:45:b9, ethertype 802.1Q (0x8100), length 46: vlan 100, p 0, ethertype ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.100.200 is-at 4a:9e:1b:95:5c:29, length 28
- (FAIL) Ping from mikrotik to 192.168.100.200 using the GUI (Tools->Ping).
Does not show anything.
- Why the GUI ping without specifying the device does not follows the same route ?, the route table is as follows:
[admin@MikroTik] /ip route> print
Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme,
B - blackhole, U - unreachable, P - prohibit
# DST-ADDRESS PREF-SRC GATEWAY DISTANCE
0 ADS 0.0.0.0/0 172.19.20.1 1
1 ADC 172.19.20.0/24 172.19.20.10 ether1 0
2 ADC 192.168.90.0/24 192.168.90.1 bridge-LAN 0
3 ADC 192.168.100.0/24 192.168.100.1 vlan-bridge-LAN... 0
4 ADC 192.168.200.0/24 192.168.200.1 vlan-bridge-LAN... 0
Again, thanks a lot for your time!
Xavi