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SRX340 MAC Address Out of Range??

  • 1.  SRX340 MAC Address Out of Range??

    Posted 01-14-2025 11:14

    Running "show chassis mac-addresses" gives me:

    Public base address      4c:16:fc:da:80:79
    Public count             127

    (BTW - why 127 instead of 128?? (0x7F instead of 0x80)

    Yet ping and arp from another switch tell me the SRX340 MAC address is 4c:16:fc:da:81:28.
    (I have an IP address on VLAN 0).

    So, this MAC address would be out of the specified range:

    From: 4C:16:FC:DA:80:79
    To:        4C.16.FC.DA.80.F7  (79 + 0x7F)

    Am I missing something, or this MAC address truly out of the specified range?

    I've done this exercise on other Juniper switches and firewalls I have, and this "out of range" issue has not occurred before.