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problem with pix520

grantchen426
Level 1
Level 1

I'm newable to pix.

After I configured my pix520 like follow,I couldn't be able to ping outside interface IP from inside network successfully.what's the problem?

And another small question:

If I use PAT to deal with inside network addresses,can I ping the PAT IP address from the outside network successfully?It appeared I couldn't.

pix(config)# wr t

Building configuration...

: Saved

:

PIX Version 4.4(7)

nameif ethernet0 outside security0

nameif ethernet1 inside security100

enable password xxxxxxxx encrypted

passwd xxxxxxxx encrypted

hostname pix

fixup protocol ftp 21

fixup protocol http 80

fixup protocol h323 1720

fixup protocol rsh 514

fixup protocol smtp 25

fixup protocol sqlnet 1521

names

pager lines 24

logging on

no logging timestamp

no logging console

no logging monitor

no logging buffered

no logging trap

logging facility 20

logging queue 512

interface ethernet0 10full

interface ethernet1 10full

mtu outside 1500

mtu inside 1500

ip address outside 1.1.1.1 255.0.0.0

ip address inside 192.168.1.1 255.255.255.0

no failover

failover timeout 0:00:00

failover ip address outside 0.0.0.0

failover ip address inside 0.0.0.0

arp timeout 14400

global (outside) 1 1.1.1.100-1.1.1.200 netmask 255.0.0.0

nat (inside) 1 0.0.0.0 0.0.0.0 0 0

conduit permit icmp any any

no rip outside passive

no rip outside default

no rip inside passive

no rip inside default

route outside 0.0.0.0 0.0.0.0 1.1.1.2 1

route inside 192.168.0.0 255.255.0.0 192.168.1.2 1

timeout xlate 3:00:00 conn 1:00:00 half-closed 0:10:00 udp 0:02:00

timeout rpc 0:10:00 h323 0:05:00

timeout uauth 0:05:00 absolute

aaa-server TACACS+ protocol tacacs+

aaa-server RADIUS protocol radius

no snmp-server location

no snmp-server contact

snmp-server community public

no snmp-server enable traps

telnet 192.168.1.2 255.255.255.255

telnet timeout 5

terminal width 80

Cryptochecksum:xxxxxxxxxxxxxxxx

: end

[OK]

pix(config)#

1 Accepted Solution

Accepted Solutions

paddyxdoyle
Level 6
Level 6

Hi,

You won't be able to ping your outside interface from an inside network i'm afraid. This is the default behaviour of the PIX. Likewise you can't ping an inside interface from the outside.

With the global address, i believe you should be able to ping it from the outside (please correct me) as the PIX should proxy arp for this address.

If i'm correct, then you will need to add something like

icmp permit echo outside

Also the conduit you have in your config allows ICMP to transit your PIX, it will not allow ICMP to the PIX's own interfaces.

For more detail please see the following link

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_note09186a0080094e8a.shtml#topic3

Good Luck

Paddy

View solution in original post

1 Reply 1

paddyxdoyle
Level 6
Level 6

Hi,

You won't be able to ping your outside interface from an inside network i'm afraid. This is the default behaviour of the PIX. Likewise you can't ping an inside interface from the outside.

With the global address, i believe you should be able to ping it from the outside (please correct me) as the PIX should proxy arp for this address.

If i'm correct, then you will need to add something like

icmp permit echo outside

Also the conduit you have in your config allows ICMP to transit your PIX, it will not allow ICMP to the PIX's own interfaces.

For more detail please see the following link

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_note09186a0080094e8a.shtml#topic3

Good Luck

Paddy