Cisco PIX firewall blocking inbound Exchange email
- by sumsaricum
[Cisco PIX, SBS2003]
I can telnet server port 25 from inside but not outside, hence all inbound email is blocked.
(as an aside, inbox on iPhones do not list/update emails, but calendar works a charm)
I'm inexperienced in Cisco PIX and looking for some assistance before mails start bouncing :/
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
hostname pixfirewall
domain-name ciscopix.com
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
no fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
name 192.168.1.10 SERVER
access-list inside_outbound_nat0_acl permit ip 192.168.1.0 255.255.255.0 192.168.1.96 255.255.255.240
access-list outside_cryptomap_dyn_20 permit ip any 192.168.1.96 255.255.255.240
access-list outside_acl permit tcp any host 213.xxx.xxx.xxx eq 3389
access-list outside_acl permit tcp any interface outside eq ftp
access-list outside_acl permit tcp any host 213.xxx.xxx.xxx eq https
access-list outside_acl permit tcp any host 213.xxx.xxx.xxx eq www
access-list outside_acl permit tcp any interface outside eq 993
access-list outside_acl permit tcp any interface outside eq imap4
access-list outside_acl permit tcp any interface outside eq 465
access-list outside_acl permit tcp any host 213.xxx.xxx.xxx eq smtp
access-list outside_cryptomap_dyn_40 permit ip any 192.168.1.96 255.255.255.240
access-list COMPANYVPN_splitTunnelAcl permit ip 192.168.1.0 255.255.255.0 any
access-list COMPANY_splitTunnelAcl permit ip 192.168.1.0 255.255.255.0 any
access-list outside_cryptomap_dyn_60 permit ip any 192.168.1.96 255.255.255.240
access-list COMPANY_VPN_splitTunnelAcl permit ip 192.168.1.0 255.255.255.0 any
access-list outside_cryptomap_dyn_80 permit ip any 192.168.1.96 255.255.255.240
pager lines 24
icmp permit host 217.157.xxx.xxx outside
mtu outside 1500
mtu inside 1500
ip address outside 213.xxx.xxx.xxx 255.255.255.128
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool VPN 192.168.1.100-192.168.1.110
pdm location 0.0.0.0 255.255.255.128 outside
pdm location 0.0.0.0 255.255.255.0 inside
pdm location 217.yyy.yyy.yyy 255.255.255.255 outside
pdm location SERVER 255.255.255.255 inside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) tcp 213.xxx.xxx.xxx 3389 SERVER 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp 213.xxx.xxx.xxx smtp SERVER smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp 213.xxx.xxx.xxx https SERVER https netmask 255.255.255.255 0 0
static (inside,outside) tcp 213.xxx.xxx.xxx www SERVER www netmask 255.255.255.255 0 0
static (inside,outside) tcp interface imap4 SERVER imap4 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 993 SERVER 993 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 465 SERVER 465 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface ftp SERVER ftp netmask 255.255.255.255 0 0
access-group outside_acl in interface outside
route outside 0.0.0.0 0.0.0.0 213.zzz.zzz.zzz
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 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 RADIUS (inside) host SERVER *** timeout 10
aaa-server LOCAL protocol local
http server enable
http 217.yyy.yyy.yyy 255.255.255.255 outside
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 match address outside_cryptomap_dyn_20
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-MD5
crypto dynamic-map outside_dyn_map 40 match address outside_cryptomap_dyn_40
crypto dynamic-map outside_dyn_map 40 set transform-set ESP-3DES-MD5
crypto dynamic-map outside_dyn_map 60 match address outside_cryptomap_dyn_60
crypto dynamic-map outside_dyn_map 60 set transform-set ESP-3DES-MD5
crypto dynamic-map outside_dyn_map 80 match address outside_cryptomap_dyn_80
crypto dynamic-map outside_dyn_map 80 set transform-set ESP-3DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map client authentication RADIUS LOCAL
crypto map outside_map interface outside
isakmp enable outside
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
telnet 217.yyy.yyy.yyy 255.255.255.255 outside
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh 217.yyy.yyy.yyy 255.255.255.255 outside
ssh 0.0.0.0 255.255.255.0 inside
ssh timeout 5
management-access inside
console timeout 0
dhcpd address 192.168.1.20-192.168.1.40 inside
dhcpd dns SERVER 195.184.xxx.xxx
dhcpd wins SERVER
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
: end
I have Kiwi SysLog running but could use some pointers in that regard to narrow down the torrent of log messages, if that helps?!
