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pix 525 routing question

my client got a pix 525-ur with two interface card . now i got a icmp ping problem with this pix device when i made some test. the follow is the test environment

PC1 ---- (inside) PIX (outside) --- PC2

PC1 directly connect the inside interface and ping the inteface normally, same to the PC2. the pc's default gw had also set to the pix interface address they direct connected

but when pc2 ping the inside interface , i got time out

and i debug packet outside saw that only one direction packet flow from pc2 to inside interface , but no packet from inside interface flow to pc2 , when pc2 ping pc1, debug packet outside got the same.

and i use pc1 to ping the pc2 ,i can saw the both direction packet flow between pc1 to pc2 when i debug packet outside , but the ping is still time out. the same to pc1 ping the outside interface

the follow is the pix configuration

PIX Version 6.3(1)

interface ethernet0 auto

interface ethernet1 auto

nameif ethernet0 outside security0

nameif ethernet1 inside security100

enable password xxxx

passwd xxxxxx

hostname pixfirewall

fixup protocol ftp 21

fixup protocol h323 h225 1720

fixup protocol h323 ras 1718-1719

fixup protocol http 80

fixup protocol ils 389

fixup protocol rsh 514

fixup protocol rtsp 554

fixup protocol sip 5060

fixup protocol sip udp 5060

fixup protocol skinny 2000

fixup protocol smtp 25

fixup protocol sqlnet 1521


access-list acl_out permit icmp any any

access-list acl_in permit icmp any any

pager lines 24

mtu outside 1500

mtu inside 1500

ip address outside

ip address inside

ip audit info action alarm

ip audit attack action alarm

pdm history enable

arp timeout 14400

nat (inside) 0 0 0

access-group acl_out in interface outside

route outside 1

route outside 1

route outside 1

route outside 1

route outside 1

route outside 1

timeout xlate 3:00:00

timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00

timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00

timeout uauth 0:05:00 absolute

aaa-server TACACS+ protocol tacacs+

aaa-server RADIUS protocol radius

aaa-server LOCAL protocol local

no snmp-server location

no snmp-server contact

snmp-server community public

no snmp-server enable traps

no floodguard enable

telnet timeout 5

ssh timeout 5

console timeout 0

terminal width 80



it is quite strange to me , is there someone be kind give me some advice for the problem , thank you very much !


Re: pix 525 routing question

Hi -

Pls read the following and let me know how you get on...

Thanks -