Cisco Systems %PIX-4-402106: Rec'd packet not an IPSEC packet.

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Subject Author Date
%PIX-4-402106: Rec'd packet not an IPSEC packet. lfnetworking 08-25-06
Posted by lfnetworking on August 25, 2006, 4:06 pm
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515 running 7.2
Attempting to ssh to inside interface through a cisco vpnclient
connection. I can successfully ssh to inside interface from a machine on
the same physical/logical segment.

pix515# sh ssh
Timeout: 5 minutes
Version allowed: 2
0.0.0.0 0.0.0.0 pix-outside
0.0.0.0 0.0.0.0 pix-inside

...............

Linux vpnclient stat
Client Type(s): Linux
Running on: Linux 2.4.21-4.EL #1 Fri Oct 3 18:13:58 EDT 2003 i686
Config file directory: /etc/opt/cisco-vpnclient

VPN tunnel information.
Client address: 192.168.221.2
Encryption: 168-bit 3-DES
Authentication: HMAC-SHA
IP Compression: None
NAT passthrough is active on port UDP 10000
Local LAN Access is disabled

VPN traffic summary.
Time connected: 0 day(s), 00:27.20
Bytes in: 260822
Bytes out: 214704
Packets encrypted: 2856
Packets decrypted: 2010
Packets bypassed: 4046
Packets discarded: 0

Configured routes.
Secured Network Destination Netmask
192.168.220.0 255.255.255.0

.......................

client ssh messages:
ssh_exchange_identification: read: Connection reset by peer

pix log message:
%PIX-4-402106: Rec'd packet not an IPSEC packet. (ip) dest_addr=
192.168.220.1, src_addr= 192.168.221.2, prot= TCP



Posted by Walter Roberson on August 26, 2006, 12:20 am
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>515 running 7.2
>Attempting to ssh to inside interface through a cisco vpnclient
>connection. I can successfully ssh to inside interface from a machine on
>the same physical/logical segment.

I haven't studied 7.x. In 6.x, the only way to ssh from the
outside through to the inside interface, is to configure a vpn
as a "management vpn" and come in through that. The "management vpn"
so created can -only- be used to access the PIX itself; I think it
uses the other kind of IPSec tunnel (one that is *required* by
the IPSec specifications not to be used to gateway packets.)

Posted by Brian V on August 26, 2006, 10:49 am
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>>515 running 7.2
>>Attempting to ssh to inside interface through a cisco vpnclient
>>connection. I can successfully ssh to inside interface from a machine on
>>the same physical/logical segment.
>
> I haven't studied 7.x. In 6.x, the only way to ssh from the
> outside through to the inside interface, is to configure a vpn
> as a "management vpn" and come in through that. The "management vpn"
> so created can -only- be used to access the PIX itself; I think it
> uses the other kind of IPSec tunnel (one that is *required* by
> the IPSec specifications not to be used to gateway packets.)

try the command "management-access inside"



Posted by lfnetworking on August 27, 2006, 1:30 am
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thanks brian!

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