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Despierto
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Posts: 9
Joined: Tue Apr 16, 2019 2:11 pm
Location: Russia

Loop and duplicated mac addresses on bridge interfaces

Tue Jul 16, 2019 2:25 pm

Hello! I have RB1100AHx4 (R1) and hAP (SW2) connected with trunk.
Ping from R1 to SW2 works, but vise versa no.
Please help me understand the reason. I suppose it`s because of this message in log:
interface,warning vlan80--SI--trunk-to-SW2-sysadmins: bridge port received packet with own address as source address (b8:69:f4:15:15:92), probably loop
R1 /interface print
 Flags: D - dynamic, X - disabled, R - running, S - slave 
 #     NAME                                TYPE       ACTUAL-MTU L2MTU  MAX-L2MTU MAC-ADDRESS      
 0  R  ;;; WAN
       ether1-wan-rostelecom               ether            1500  1592       9578 B8:69:F4:15:15:8B
 1   S ;;; NET1
       ether2                              ether            1500  1592       9578 B8:69:F4:15:15:8C
 2  RS ether3-to-servers-dlink-switch      ether            1500  1592       9578 B8:69:F4:15:15:8D
 3   S ether4                              ether            1500  1592       9578 B8:69:F4:15:15:8E
 4   S ether5                              ether            1500  1592       9578 B8:69:F4:15:15:8F
 5  RS ether6-to-buh-switch                ether            1500  1592       9578 B8:69:F4:15:15:90
 6  R  ;;; TRUNK PORTS
       ether7-trunk-to-SW1-servers         ether            1500  1592       9578 B8:69:F4:15:15:91
 7  R  ether8-trunk-to-SW2-sysadmins       ether            1500  1592       9578 B8:69:F4:15:15:92
 8   S ;;; NET1
       ether9                              ether            1500  1592       9578 B8:69:F4:15:15:93
 9   S ether10                             ether            1500  1592       9578 B8:69:F4:15:15:94
10   S ether11                             ether            1500  1592       9578 B8:69:F4:15:15:95
11  R  ether12-to-Test-R1-for-mgmt         ether            1500  1592       9578 B8:69:F4:15:15:96
12   S ether13                             ether            1500  1592       9578 B8:69:F4:15:15:97
13  R  ;;; NET 1
       bridge-net1-vlan99                  bridge           1500  1588            B8:69:F4:15:15:8C
14  R  ;;; OFFICE
       bridge-vlan10-office                bridge           1500  1588            B8:69:F4:15:15:92
15  R  ;;; GUESTS
       bridge-vlan30-guests                bridge           1500  1588            B8:69:F4:15:15:93
16  R  ;;; SYSADMINS
       bridge-vlan50-sysadmins             bridge           1500  1588            B8:69:F4:15:15:92
17  R  ;;; SERVERS
       bridge-vlan70-servers               bridge           1500  1588            B8:69:F4:15:15:91
18  R  ;;; MANAGEMENT
       bridge-vlan80-management            bridge           1500  1588            B8:69:F4:15:15:91
19  R  ;;; WAN
       pppoe-out1                          pppoe-out        1480
20  RS vlan10--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
21  RS vlan30--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
22  RS vlan50--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
23  RS vlan70--SI--trunk-to-SW1-servers    vlan             1500  1588            B8:69:F4:15:15:91
24  RS vlan80--SI--trunk-to-SW1-servers    vlan             1500  1588            B8:69:F4:15:15:91
25  RS vlan80--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
26  RS vlan99-SI-trunk-to-SW2-sysadmins    vlan             1500  1588            B8:69:F4:15:15:92

UPD: I found information about auto-mac for bridges and with admin-mac I`ve changed it. But the problem is still there. And as I can see mac addresses of vlan interfaces are equal too. Should I change all of them manually?

UPD2: I've found roots of ping problem in firewall. So, it`s ok now.
But the error continues repeating in log on R1. From that article I understand one can`t change mac on VLAN interface, so I changed macs on all bridges on R1. No use.
R1 /interface print now
Flags: D - dynamic, X - disabled, R - running, S - slave 
 #     NAME                                TYPE       ACTUAL-MTU L2MTU  MAX-L2MTU MAC-ADDRESS      
 0  R  ;;; WAN
       ether1-wan-rostelecom               ether            1500  1592       9578 B8:69:F4:15:15:8B
 1   S ;;; NET1
       ether2                              ether            1500  1592       9578 B8:69:F4:15:15:8C
 2  RS ether3-to-servers-dlink-switch      ether            1500  1592       9578 B8:69:F4:15:15:8D
 3   S ether4                              ether            1500  1592       9578 B8:69:F4:15:15:8E
 4   S ether5                              ether            1500  1592       9578 B8:69:F4:15:15:8F
 5  RS ether6-to-buh-switch                ether            1500  1592       9578 B8:69:F4:15:15:90
 6  R  ;;; TRUNK PORTS
       ether7-trunk-to-SW1-servers         ether            1500  1592       9578 B8:69:F4:15:15:91
 7  R  ether8-trunk-to-SW2-sysadmins       ether            1500  1592       9578 B8:69:F4:15:15:92
 8   S ;;; NET1
       ether9                              ether            1500  1592       9578 B8:69:F4:15:15:93
 9   S ether10                             ether            1500  1592       9578 B8:69:F4:15:15:94
10   S ether11                             ether            1500  1592       9578 B8:69:F4:15:15:95
11  R  ether12-to-Test-R1-for-mgmt         ether            1500  1592       9578 B8:69:F4:15:15:96
12   S ether13                             ether            1500  1592       9578 B8:69:F4:15:15:97
13  R  ;;; NET 1
       bridge-net1-vlan99                  bridge           1500  1588            B8:69:F4:15:15:8C
14  R  ;;; OFFICE
       bridge-vlan10-office                bridge           1500  1588            B8:69:F4:75:15:10
15  R  ;;; GUESTS
       bridge-vlan30-guests                bridge           1500  1588            B8:69:F4:15:15:30
16  R  ;;; SYSADMINS
       bridge-vlan50-sysadmins             bridge           1500  1588            B8:69:F4:75:15:50
17  R  ;;; SERVERS
       bridge-vlan70-servers               bridge           1500  1588            B8:69:F4:75:15:70
18  R  ;;; MANAGEMENT
       bridge-vlan80-management            bridge           1500  1588            B8:69:F4:75:15:80
19  R  ;;; WAN
       pppoe-out1                          pppoe-out        1480
20  RS vlan10--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
21  RS vlan30--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
22  RS vlan50--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
23  RS vlan70--SI--trunk-to-SW1-servers    vlan             1500  1588            B8:69:F4:15:15:91
24  RS vlan80--SI--trunk-to-SW1-servers    vlan             1500  1588            B8:69:F4:15:15:91
25  RS vlan80--SI--trunk-to-SW2-sysadmins  vlan             1500  1588            B8:69:F4:15:15:92
26  RS vlan99-SI-trunk-to-SW2-sysadmins    vlan             1500  1588            B8:69:F4:15:15:92

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