PIX to Watchguard 20 Second Drop Intervals

[TheStressFactor]

Hello All,

I am configuring a vpn from my site to a remote branch. They are using a watchguard firewall. I have configured my pix and the admin at the remote site has configured his watchguard. We can ping eac others machines and access each others resources. However every few minutes or so there is a drop in the connection..I have timed it to about 20 seconds and then the connection comes back magically. If anyone can take a look at my config and offer any insight or suggestions I would greatly appreciate it. Thank you.

Patrick


PIX Version 6.2(2)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 intf2 security10
enable password 7DeygvHKjBuxNxrP encrypted
passwd 0fTucaWSYztRT69N encrypted
hostname mypix
domain-name mydomain.com
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
fixup protocol skinny 2000
names
access-list nonat permit ip 192.168.3.0 255.255.255.0 10.1.1.0 255.255.255.0
access-list nonat permit ip 192.168.3.0 255.255.255.0 192.168.77.0 255.255.255.0

access-list nonat permit ip 192.168.77.0 255.255.255.0 192.168.3.0 255.255.255.0

access-list 80 permit icmp any any
pager lines 24
interface ethernet0 100basetx
interface ethernet1 100basetx
interface ethernet2 auto shutdown
mtu outside 1500
mtu inside 1500
mtu intf2 1500
ip address outside x.x.x.70 255.255.255.240
ip address inside 192.168.3.1 255.255.255.0
ip address intf2 127.0.0.1 255.255.255.255
ip audit info action alarm
ip audit attack action alarm
ip local pool localpool 10.1.1.1-10.1.1.50
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list nonat
nat (inside) 1 192.168.0.0 255.255.255.0 0 0
nat (inside) 1 192.168.1.0 255.255.255.0 0 0
nat (inside) 1 192.168.3.0 255.255.255.0 0 0
nat (inside) 1 192.168.4.0 255.255.255.0 0 0
nat (inside) 1 192.168.5.0 255.255.255.0 0 0
static (inside,outside) 192.168.3.2 x.x.x.67 netmask 255.255.255.255 0 0
access-group 80 in interface outside
conduit permit tcp host x.x.x.67 eq smtp any
route outside 0.0.0.0 0.0.0.0 x.x.x.65 1
route inside 192.168.0.0 255.255.255.0 192.168.3.6 1
route inside 192.168.1.0 255.255.255.0 192.168.3.6 1
route inside 192.168.4.0 255.255.255.0 192.168.3.6 1
route inside 192.168.5.0 255.255.255.0 192.168.3.6 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 si
p 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 192.168.3.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
sysopt connection permit-pptp
no sysopt route dnat
crypto ipsec transform-set pixtransform esp-des esp-sha-hmac
crypto map testmap 10 ipsec-isakmp
crypto map testmap 10 match address nonat
crypto map testmap 10 set peer x.x.x.83
crypto map testmap 10 set transform-set pixtransform
crypto map testmap 10 set security-association lifetime seconds 360 kilobytes 81
92
crypto map testmap interface outside
isakmp enable outside
isakmp key ******** address x.x.x..83 netmask 255.255.255.248
isakmp identity address
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash sha
isakmp policy 20 group 1
isakmp policy 20 lifetime 86400
telnet 192.168.3.0 255.255.255.0 inside
telnet timeout 60
ssh timeout 5
vpdn group 1 accept dialin pptp
vpdn group 1 ppp authentication pap
vpdn group 1 ppp authentication chap
vpdn group 1 ppp authentication mschap
vpdn group 1 ppp encryption mppe auto
vpdn group 1 client configuration address local marinowarelocalpool
vpdn group 1 client configuration dns 192.168.3.7
vpdn group 1 client configuration wins 192.168.3.7
vpdn group 1 pptp echo 60
vpdn group 1 client authentication local
vpdn username myname password *********
vpdn username hisname password *********
vpdn enable outside
terminal width 80

 

[yizhar]

HI.

***

> crypto map testmap 10 set security-association lifetime
> seconds 360 kilobytes 8192
Make sure that the values match on both sides, and try to use higher values. It can give you a good hint if this is related to the timeouts or not.
> isakmp policy 20 lifetime 86400
You also need to verify that this value is the same at both peers.

***

You also need to debug this using syslog messages and debug commands. You can find some good debug commands at the bottom of this page:

http://www.cisco.com/warp/public/110/cp-p.html

(It does not matter if the remote peer is different - the pix commands should be the same).
The Watchguard admin should also check his logs.

***

Try to monitor CPU load, bandwidth and other resources usage.

Bye
Yizhar Hurwitz

http://come.to/yizhar

http://teachers.sivan.co.il/yizhar