MountaineerWV
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VLAN to carry ISP to Cisco ASA using 3COM 4200 Switch
I have a Cisco ASA in Building “A” with an MPLS network and 3COM 4200 switch.
Building “B” is connected via fiber using media converters with a 3COM 4200 switch.
I now have a failover ISP which could only be located in building “B”. I want to create a VLAN from building “B” to building “A” so that I can pass the ISP to the Cisco ASA in building “A”.
So far what I have done –
Building “A” 3COM Switch
Created VLAN 15
Added port 12 to VLAN 15 untagged
Plugged port 12 into the ASA
Building “B” 3COM Switch
Created VLAN 15
Added port 12 to VLAN 15 untagged
Plugged port 12 into the cable modem
I cannot see/ping the ASA from the outside world. Also place other item on this port and could not ping it.
BTW – Internal network = 10.10.100.0. ISP = 50.74.61.65/29
Do I need to do anything with the 3COM ports where the media converters are plugged in ?
Thanks!
Mountaineer*
Building “B” is connected via fiber using media converters with a 3COM 4200 switch.
I now have a failover ISP which could only be located in building “B”. I want to create a VLAN from building “B” to building “A” so that I can pass the ISP to the Cisco ASA in building “A”.
So far what I have done –
Building “A” 3COM Switch
Created VLAN 15
Added port 12 to VLAN 15 untagged
Plugged port 12 into the ASA
Building “B” 3COM Switch
Created VLAN 15
Added port 12 to VLAN 15 untagged
Plugged port 12 into the cable modem
I cannot see/ping the ASA from the outside world. Also place other item on this port and could not ping it.
BTW – Internal network = 10.10.100.0. ISP = 50.74.61.65/29
Do I need to do anything with the 3COM ports where the media converters are plugged in ?
Thanks!
Mountaineer*
ASKER
Thanks. I "see" what you are saying and should not be rocket science.
I am dealing with 3COM 4200 switches (not 4200G)
do you know the telnet command line interface commands?
How do I impose "port link-type hybrid"?
Thanks!
I am dealing with 3COM 4200 switches (not 4200G)
do you know the telnet command line interface commands?
How do I impose "port link-type hybrid"?
Thanks!
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ASKER
Was this for a 3COM 4200? (not 4200G)?
ASKER
Thanks!
So if vlan 1 normally carried data and you only needed to add vlan 15 to carry the ISP traffic:
int eth 1/0/1
port link-type hybrid
port hybrid vlan 1 untagged
port hybrid vlan 15 tagged
port hybrid pvid vlan 1