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04-02-2015 12:53 PM
04-02-2015 12:53 PM
3Com 4500 switch default VLAN issue
So I have a 3Com SuperStack 3 Switch 4500 PWR 50-Port Software Version 3Com OS V3.02.00s56. I am having the biggest issue with something that seems so simple. I have a uplink to my firewall and uplink to 2 APs. I want VLAN 99 to be my default VLAN/PVID and allow tagged VLANs 120 & 130 to pass through. What would be so simple just isn't! I have tried configuring both as a trunk & hybrid port and still no luck. Any ideas? I cannot get DHCP from my firewall on those ports. If I plug into the firewall I get it right away. See my config's below
Hybrid Port
Trunk Port
CLI Output:
interface Ethernet1/0/41
poe enable
stp edged-port enable
port link-type hybrid
port hybrid vlan 120 130 tagged
port hybrid vlan 1 99 untagged
port hybrid pvid vlan 99
broadcast-suppression PPS 3000
priority trust
packet-filter inbound link-group 4999 rule 0
interface Ethernet1/0/43
poe enable
stp edged-port enable
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 99 120 130
port trunk pvid vlan 99
broadcast-suppression PPS 3000
priority trust
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04-06-2015 07:03 AM
04-06-2015 07:03 AM
Re: 3Com 4500 switch default VLAN issue
keep it Hybrid and remove PVID
UNTAGGED is a regular ethernet data packet
PVID (Port VLAN ID) is an UNTAGGED packet that enters a switch port , the PVID is attched to the untagged packet and forwarded to a VLAN specified by the ID part of the PVID