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09.16.2008 at 05:30AM PDT, ID: 23734834
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9.0

Setting up backup interface on Cisco ASA 5505

Asked by ArmstrongInt in Cisco PIX Firewall, Enterprise Firewalls

Tags: , , ,

Hi there

I am trying to setup a failover ADSL connection to my ASA, I think most of the code is right. Looking at another configuration example what seems to be missing is the following.

route outside 0.0.0.0 0.0.0.0 217.x.x.x  track 1                  route outside 0.0.0.0 0.0.0.0 80.x.x.x 1 (Missing the track 1)

sla monitor 123
 type echo protocol ipIcmpEcho 217.x.x.x interface outside
sla monitor schedule 123 life forever start-time now
track 1 rtr 123 reachability

I am just not sure how this is implemented. I have attached the config form this ASA so you can see what I mean. Note Int E 0/2 is plugged directly into our main switch.

Any help would be greatly appreciated.

Thanks

ArmStart Free Trial 
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ASA Version 7.2(2)
!
hostname xxxxxx-ASA
domain-name xxxxxx.local
enable password APS5CehY9m0w5TW8 encrypted
names
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 172.x.x.1 255.255.252.0
!
interface Vlan2
 nameif outside
 security-level 0
 ip address 80.x.x.x 255.255.255.248
!
interface Vlan3
 nameif backup
 security-level 0
 ip address 78.x.x.x 255.255.255.248
!
interface Ethernet0/0
 switchport access vlan 2
 speed 100
 duplex full
!
interface Ethernet0/1
 switchport access vlan 3
 speed 100
 duplex full
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
passwd APS5CehY9m0w5TW8 encrypted
ftp mode passive
dns domain-lookup inside
dns server-group DefaultDNS
 name-server 172.16.x.x
 domain-name xxxxxx.local
access-list acl_outside extended permit tcp any host 80.x.x.x eq 3389
access-list acl_outside extended permit udp any host 80.x.x.x eq 3389
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
mtu backup 1500
ip local pool remote-pool 172.16.1.1-172.16.1.254
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
global (backup) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) tcp 80.x.x.x 3389 172.x.x.20 3389 netmask 255.255.255.255
static (inside,outside) udp 80.x.x.x 3389 172.x.x.20 3389 netmask 255.255.255.255
access-group acl_outside in interface outside
route outside 0.0.0.0 0.0.0.0 80.x.x.x 1
route backup 0.0.0.0 0.0.0.0 78.x.x.x 254
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
http server enable
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set myset esp-des esp-md5-hmac
crypto dynamic-map dynmap 10 set transform-set myset
crypto dynamic-map dynmap 10 set reverse-route
crypto map mymap 10 ipsec-isakmp dynamic dynmap
crypto map mymap interface outside
crypto isakmp enable outside
crypto isakmp policy 10
 authentication pre-share
 encryption 3des
 hash md5
 group 2
 lifetime 86400
telnet 172.x.x.0 255.255.0.0 inside
telnet timeout 5
ssh 80.x.x.x 255.255.255.248 outside
ssh timeout 5
console timeout 0
 
!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
 parameters
  message-length maximum 512
policy-map global_policy
 class inspection_default
  inspect ftp
  inspect h323 h225
  inspect h323 ras
  inspect netbios
  inspect rsh
  inspect rtsp
  inspect skinny
  inspect sqlnet
  inspect sunrpc
  inspect tftp
  inspect sip
  inspect xdmcp
  inspect dns preset_dns_map
!
prompt hostname context
Cryptochecksum:45311a5f9f534e2c5cc2f88e3792d378
: end
xxxxxx-ASA#
[+][-]09.16.2008 at 09:49AM PDT, ID: 22490483

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About this solution

Zones: Cisco PIX Firewall, Enterprise Firewalls
Tags: Cisco, ASA, 5505, This platform has an ASA 5505 Security Plus license.
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Solution Provided By: MikeKane
Participating Experts: 1
Solution Grade: B
 
 
[+][-]09.17.2008 at 01:40AM PDT, ID: 22496583

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