Unable to access ASA through telnet, ssh, and asdm from inside network.

[ssanjaykumar]

ASA is functioning normally, but i am unable to access ASA through telnet, ssh, and asdm from inside network.

I was able to access ASA through asdm and telnet before.

Even ping to inside interface from inside network is also timing out.

I disabled and re-enabled ssh, telnet and http server.

do i need to restart the ASA or is there any other way to resolve this issue. please help me to resolve this issue.

[rizwanr74]

You might want to kick start the demon but adding a new permit line.

ssh 10.0.0.0 255.0.0.0 inside

telnet 10.0.0.0 255.0.0.0 inside

Let me know, If this helps.

Thanks

Rizwan Rafeek

[ssanjaykumar]

Thanks for the reply

I have already added these commands in asa and still not able to access through asdm, telnet, ssh.

Ping to inside interface of ASA from the PCs are showing request time out

I am able to telnet through any network device in the network but not through my PC or any PC.

I did restarted the asa but the issue was not resolved.

[ssanjaykumar]

#icmp permit any inside

Command has done the trick.

Now I am able to access everything.

By default the inside interface has to ping.  I added and removed that command and  it started working.

can any one tell me why it happened ???

[rizwanr74]

I have had this problem on one of my ASA I manage.

Off and on, I loose connectivity I end up adding a brand new permit line, just to kick start the demon.  It is due to a bug.

Hope that answers your question.

Thanks

[ssanjaykumar]

I am able to ping through lan and can access asdm but not through wifi.

the led status of all the interface of asa are showing amber.

I am using sg300 as core switch... 2504 as WLC...

Connection: Core switch--->ASA---->Router---->ISP

wlc is connected to core switch.

[Andre Neethling]

How many subnets are connected to your Core switch. Are you wireless devices in another subnet as the one you have configured in the HTTP and SSH commands?

[ssanjaykumar]

core switch has 5 subnets including management subnet.

wireless controller has two ssids one gives management ip and the other one gives another subnet ip.

I am facing this problem through management ip which is configured in the http and ssh commands.

Another finding is that i am able to access some times and after some time the connection will get disconnected.

There is a SYN Attack and too much packet drops. I have only basic threat detection enabled. let met try customized threat detection and see any improvement.