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Pix 515e, assigning IP issue

Halaswamy.am
Level 1
Level 1
Hello Experts,

I am a functional analyst in my org and had to take up handling the network as our system admin quit without notice. I do not have knowledge in networking. We are in the process of hiring a new one.

I need some info or help on the cisco pix firewall, on VPN specifically.
We have a PIX 515e.

Pix is configured to assign an IP range 10.5.30.1 to 10.5.30.254 for RA VPN.

Last monday we had a problem, no one was able to login to pix..the vpn client gave an error :::
Reason 433 (Reason not specified by peer).
I dont know why this happened. After 8-10 hours it was normal again.
Since then I observed that the pix was assigning IP from 10.5.30.201 to 10.5.30.215.

I hadnt checked what was the IPs assigned before this happened.

Again this week On tuesday we had same problem. After 8-10 hours it was normal again.

Since then it was assigning 10.5.30.215 to 10.5.30.225.
Today it is assigning from 10.5.30.225 to 10.5.30.235

Is this normal?
Why is it not assigning the remaining (10.5.30.1 to 10.5.30.215) IPs?
when it reaches 10.5.30.254, does it go back and start assigning 10.5.30.1 and so on?
I'm worried if this is abnormal behaviour of the pix...

Also how to switch to 'Feature Mode' on the ASDM 5.2 for cisco pix 515e.(to edit an existing VPN config)
Can you help me on this please.

Thanks in advance.

1 Reply 1

Ganesh Hariharan
VIP Alumni
VIP Alumni
Hello Experts,

I am a functional analyst in my org and had to take up handling the network as our system admin quit without notice. I do not have knowledge in networking. We are in the process of hiring a new one.

I need some info or help on the cisco pix firewall, on VPN specifically.
We have a PIX 515e.

Pix is configured to assign an IP range 10.5.30.1 to 10.5.30.254 for RA VPN.

Last monday we had a problem, no one was able to login to pix..the vpn client gave an error :::
Reason 433 (Reason not specified by peer).
I dont know why this happened. After 8-10 hours it was normal again.
Since then I observed that the pix was assigning IP from 10.5.30.201 to 10.5.30.215.

I hadnt checked what was the IPs assigned before this happened.

Again this week On tuesday we had same problem. After 8-10 hours it was normal again.

Since then it was assigning 10.5.30.215 to 10.5.30.225.
Today it is assigning from 10.5.30.225 to 10.5.30.235

Is this normal?
Why is it not assigning the remaining (10.5.30.1 to 10.5.30.215) IPs?
when it reaches 10.5.30.254, does it go back and start assigning 10.5.30.1 and so on?
I'm worried if this is abnormal behaviour of the pix...

Also how to switch to 'Feature Mode' on the ASDM 5.2 for cisco pix 515e.(to edit an existing VPN config)
Can you help me on this please.

Thanks in advance.

Hi ,

Check the configuration for ip realease in pix after sucessful vpn connection how much time it will bind the ip address with connection.

Hope to help

Regards

Ganesh.H