I'm not fully familiar with ASA's but I'm really stumped and need help. I have a HA pair of 5510's with a current ISP connection in them. We now have a new ISP connection which I have connected to Eth0/3. The link has been provisioned as a /30. Last week, I connected it up, set the interface with it's IP and I could ping the opposite end ISP GW. All good.
So I went to migrate today and wanted to move the new connection across into Eth0/0 and leave that interface called "outside", and apply the IP on it. Anyway, it would not work. I failed back and began to try and investigate what the issue is.
So now, having reverted back, no matter what I do (shut / no shut) (disconnect link to secondary of HA), the interface Eth0/3 is now down/down, despite the link light being on, and the connection from an intermediate switch showing as up/up - but sending traffic and receiving nothing back from the ASA.
So it looks like the ASA port is stuck in some state. A reboot left it in the same state - I just cannot get it to come up again.
I took the cable out of the ASA and connected it into my laptop, assigned my laptop the IP address that the ASA is being given - perfect - I can reach the ISP and beyond. So I put it straight back into the ASA and ........ still down / down. If I remove the speed and duplex, still no joy.
Any help or suggestions would be greatly appreciated
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