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Sourcefire Config - Cannot ping MGMT Interface

I have a ASA firewall and am not able to ping the management interface from my laptop. From the config I have (pasted below), it seems I shoudl be able to ping it no problem. The cable from the mgmt port is plugged into a switch that also has the cable from the inside interface and the laptop. The gateway of the mgmt interface is the inside interface ip.

I do not want to attempt to do a setup of the sourcefire software since I do not have a .PKG file available.

What can I do to make sure this is configured correctly? Thanks.

interface GigabitEthernet1/2
description Inside
nameif inside
security-level 100
ip address 192.168.10.1 255.255.255.0

interface Management1/1
 management-only
 no nameif
 no security-level
 no ip address

> show network
===============[ System Information ]===============
Hostname                  : Sourcefire5508X-123
Domains                   : example.net
DNS Servers               : 8.8.4.4
                                      8.8.8.8
                            192.168.10.1
Management port           : 8305
IPv4 Default route
  Gateway                 : 192.168.10.1

======================[ eth0 ]======================
State                     : Enabled
Channels                  : Management & Events
Mode                      : Non-Autonegotiation
MDI/MDIX                  : Auto/MDIX
MTU                       : 1500
MAC Address               : CC:16:7E:98:C4:46
----------------------[ IPv4 ]----------------------
Configuration             : Manual
Address                   : 192.168.10.2
Netmask                   : 255.255.255.0
Broadcast                 : 192.168.10.255
----------------------[ IPv6 ]----------------------
Configuration             : Disabled

===============[ Proxy Information ]================
State                     : Disabled
Authentication            : Disabled

>

8 Replies 8

Marvin Rhoads
Hall of Fame
Hall of Fame

Is the 192.168.10.2 management address populating in your ARP cache when you attempt to ping it?

No, it does not.

That would normally indicate an issue with the switch configuration. Can you share the output of the switch bits as follows:

show int <id of physical interface where the ASA management port connects>

show int vlan<vlan of the SVI/gateway on the switch>

Its actually a neatgear switch that is probably unmanaged, not a Cisco switch. The inside int of the asa is not a sub int with a a vlan, just a port with an ip.

OK. If it's a simple unmanaged switch then there should not be any VLANs or other way to mis-configure it.

Can you possibly plug the laptop directly into the m1/1 port and manually assign it the gateway address just to test it that way?

I tried that but not possible since both interfaces (inside and mgmt) are in the same subnet.

ERROR: Failed to apply IP address to interface Management1/1, as the network overlaps with interface GigabitEthernet1/2. Two interfaces cannot be in the same subnet.

it was a bad cable. Problem solved. Thanks.

You're welcome.

What I was suggesting with plugging in directly wsa to set the PC address equal to the Inside address - just for testing.

In any case you've resolved it as a Layer 1 (cabling) issue. It certainly seemed like something external to the ASA in any case.

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