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| Security and Firewall Error ! Secuirty and firewall Realted Queries and support |
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Cisco PIX Default Config but No Outside Access from Inside
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#1 (permalink) |
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Fixed Error!
Posts: 1,497
Join Date: Mar 2007
Rep Power: 3
IM:
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I'm not able to route from the inside interface to the outside after restting a 506e to default factory configuration and making a few minor customizations. It never worked with the factory defaults and I've now exhausted my little knowledge of how to reconfigure this properly. I set the outside interface with an address on my local (working) subnet 10.100.100.0 and plugged it into Interface0. I've confirmed the outside interface of the PIX is indeed pingable from my active production subnet. I set the inside interface to provide DHCP in the 172.18.16.x range and added things like DNS and WINS that exist on my production subnet. I've confirmed when I plug my laptop into Interface1 it gets a valid IP address from the PIX in the correct range; also correct are the DNS and WINS addresses. So DHCP works. And I can ping the PIX inside address. So both sides work, but they don't apparently talk to each other. However, any attempt to access anything on my 10.100.100.0 subnet fails. It just times out. Another clue, perhaps unrelated: On the laptop (connected to the inside interface) I can browse to https://172.18.16.1 and, in fact, get a website security certificate error. I click on "Continue to this website" and get prompted for the User name and Password which I enter as blank (first time). I get the PDM 3.0 spalsh screen and allow pop-ups always. I go to the new "popped up" browser window and it says "Loading PIX Device Manager. Please wait ..." That's as far as it ever gets. This PIX was working perfectly on another production subnet before I reset it to its factory defaults. So I suspect it's my lack of knowledge and not something inherently broken with the device. I've copied the configuration below. Thanks very much. RG PIX Version 6.3(3) interface ethernet0 auto interface ethernet1 auto nameif ethernet0 outside security0 nameif ethernet1 inside security100 enable password 8Ry2YjIyt7RRXU24 encrypted passwd 2KFQnbNIdI.2KYOU encrypted hostname pixfirewall fixup protocol dns maximum-length 512 fixup protocol ftp 21 fixup protocol h323 h225 1720 fixup protocol h323 ras 1718-1719 fixup protocol http 80 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 fixup protocol tftp 69 names pager lines 24 mtu outside 1500 mtu inside 1500 ip address outside 10.100.100.5 255.255.255.0 ip address inside 172.18.16.1 255.255.255.0 ip audit info action alarm ip audit attack action alarm pdm logging informational 100 pdm history enable arp timeout 14400 global (outside) 1 interface nat (inside) 1 0.0.0.0 0.0.0.0 0 0 route outside 0.0.0.0 0.0.0.0 172.18.16.1 1 timeout xlate 0:05:00 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 http server enable http 172.18.16.0 255.255.255.0 inside no snmp-server location no snmp-server contact snmp-server community public no snmp-server enable traps floodguard enable telnet timeout 5 ssh timeout 5 console timeout 0 dhcpd address 172.18.16.100-172.18.16.199 inside dhcpd dns 10.100.100.3 dhcpd wins 10.100.100.3 dhcpd lease 3600 dhcpd ping_timeout 750 dhcpd enable inside terminal width 80 Cryptochecksum:3f4e069b93d51e226a9197f6a : end pixfirewall(config)# |
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#2 (permalink) |
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Fixed Error!
Posts: 1,497
Join Date: Mar 2007
Rep Power: 3
IM:
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You can't use this because your outside is 10.something Remove it with no route outside 0.0.0.0 0.0.0.0 172.18.16.1 1 Replace it with route outside 0.0.0.0 0.0.0.0 10.100.100.x <== where 'x' is a router on your network, or the existing default gateway of a host on the 10.100.100.x network, or really any ip in the 10.100.100.0 subnet, it doesn't matter if all you want to do is reach hosts on the 10.100.100.0 subnet Add this for pinging/testing access-list permit_icmp permit icmp any any access-group permit_icmp in interface outside |
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