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Problem with PIX/WAP connectivity

 
 
dilan.weerasinghe@gmail.com
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      09-10-2006
Hi

I have a lab set up as follows;

Speedtouch 836 ADSL router - PIX 506 - Cisco 2924 switch - Linkysys
wireless G WAP

Public IP block: x.x.x.192/28
Router: x.x.x.198
PIX Outside: x.x.x.193
PIX Inside VLAN1: 192.168.10.1/24
PIX Inside VLAN2: 192.168.2.1/24

If I remove the PIX from the network and configure the Speedtouch to
carry out NAT and DHCP then the WAP works fine.
If I am connected to the 2924 switch via wire (and the WAP is taken out
of the equation) then there is no issue either.
However, when the PIX and WAP are both being used, my laptop's wireless
connection loses internet capability periodically (say around every
10-20mins). I can still ping the inside interface of the PIX, however
cannot telnet to it or ping any other sites or the router's address.
Nor can I even browse to the PDM (provided I am on the correct VLAN),
even though I can ping the inside interface. If I was connected to the
PIX via a telnet connection, then I am disconnected.
After about 5-6 mins, the connection is restored and it everything
works ok again.


Sh conf from PIX:

PIX Version 6.3(4)
interface ethernet0 10baset
interface ethernet1 10baset
interface ethernet1 vlan2 logical
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif vlan2 guest security50
enable password **** encrypted
passwd **** encrypted
hostname pixfirewall
domain-name ciscopix.com
clock timezone GMT/BST 0
clock summer-time GMT/BDT recurring last Sun Mar 1:00 last Sun Oct 2:00
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 pptp 1723
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
access-list outside_access_in remark Allow ICMP traffic
access-list outside_access_in permit icmp any any
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside x.x.x.193 255.255.255.248
ip address inside 192.168.10.1 255.255.255.0
ip address guest 192.168.2.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm location 192.168.10.5 255.255.255.255 inside
pdm location 192.168.10.6 255.255.255.255 inside
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
nat (guest) 1 0.0.0.0 0.0.0.0 0 0
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 x.x.x.198 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 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 192.168.10.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
telnet 192.168.10.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.10.5-192.168.10.20 inside
dhcpd address 192.168.2.5-192.168.2.10 guest
dhcpd dns y.y.y.100 y.y.y.200
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
dhcpd enable guest
username **** password **** encrypted privilege 15
terminal width 80
Cryptochecksum:***
: end
[OK]

Does anyone have any ideas?

Many tia

 
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Merv
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      09-10-2006

Have you tried upgrading to 6.3(5) ?

 
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