troubleshooting Question

no dns through pix

Avatar of eynn
eynnFlag for United States of America asked on
Cisco
5 Comments1 Solution617 ViewsLast Modified:
I am trying setup a Cisco Pix 501 behind a speedstream dsl router. The DSlL router is set to server Ip addresses via dhcp and has a LAN side IP of 192.168.254.254. I've set the Pix to serve dhcp addresses on it's LAN side in the range 192.168.1.20. I can ping the Internet, but cannot ping any URL's from behind the pix. I have manually set 2 DNS servers on the pix, one being the dsl router and one being a public server (4.2.2.2) What do I need to do to get dns resolution on the lan side of the pix? I will post the current config below.

Current config:

Bowring# show config
: Saved
: Written by enable_15 at 11:41:07.182 UTC Sat May 24 2008
PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password &.encrypted
passwd &.encrypted
hostname Bowring
domain-name Home
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 192.168.254.253 255.255.255.0
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm location 192.168.1.5 255.255.255.255 inside
pdm history enable
arp timeout 14400
nat (inside) 0 0.0.0.0 0.0.0.0 0 0
route outside 0.0.0.0 0.0.0.0 192.168.254.254 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 sip-disconnect 0:02:00 sip-invite 0:03:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server TACACS+ max-failed-attempts 3
aaa-server TACACS+ deadtime 10
aaa-server RADIUS protocol radius
aaa-server RADIUS max-failed-attempts 3
aaa-server RADIUS deadtime 10
aaa-server LOCAL protocol local
http server enable
http 192.168.1.5 255.255.255.255 inside
http 0.0.0.0 0.0.0.0 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 192.168.1.20-192.168.1.50 inside
dhcpd dns 192.168.254.254 4.2.2.2
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd enable inside
terminal width 80
Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 5 Comments.
Join the Community
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 5 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros