Hi Group,
I' am setting up a Cisco 876 ISDN ADSL router.
The company has two broadband connections: one ISDN over ADSL (currenty by the 876) and one, on an Ethenet cable modem.
I have read that I can use Cisco's 876 ISDN BRI port as wan port for the cable modem. So effectiffly load balancing between the two ISP's
I did some homework and made a config to balance between the thow ISP's.
Can you check my config for errors? Before I load this in the 876. I used the template from:
Many thanks in advance. picure of the 876:
resource policy ! clock timezone BXL 1 ip subnet-zero ip cef ! ! OpenDNS server om dns queries nog te versnellen. ! ip name-server 208.67.222.222 ip name-server 208.67.220.220 !!
! Het Dual Wan gedeelte begint hieronder. ! ! track timer interface 5 ! ! Configure timers on route tracking ! track 123 rtr 1 reachability delay down 15 up 10 ! track 345 rtr 2 reachability delay down 15 up 10
! ! Use ?ip dhcp client route track [number]? ! to monitor route on DHCP interfaces ! Define ISP-facing interfaces with ?ip nat outside? ! ! Deze interface hieronder hangt aan de telenet kabelmodem ! This is the iface to the cable modem
interface BRI0 ip address dhcp ip dhcp client route track 345 ip nat outside ip virtual-reassembly mac-address 0050.BFB7.772C ! ! interface FastEthernet0 ! interface FastEthernet1 ! interface FastEthernet2 ! interface FastEthernet3 ! ! ! Define LAN-facing interfaces with ?ip nat inside? ! This is the Lan iface ! interface Vlan1 description LAN Interface ip address 192.168.0.254 255.255.255.0 ip nat inside ip virtual-reassembly ip tcp adjust-mss 1452
! ! Define ISP-facing interfaces with ?ip nat outside? ! this is the ADSL line to Skynet ! interface ATM0 description *** DSL line *** ip address ****snip******** 255.255.255.192 ip nat outside ip virtual-reassembly no atm ilmi-keepalive pvc 0/35 protocol ip *snip******* broadcast encapsulation aal5snap dsl operating-mode auto !
ip route 0.0.0.0 0.0.0.0 ATM0 track 123 ! ! Configure NAT overload (PAT) to use route-maps ! ip nat inside source route-map fixed-nat interface ATM0 overload ip nat inside source route-map dhcp-nat interface BRI0 overload ! ! Configure an OER tracking entry ! om de eerste verbinding van de ADSL i-line te monitoren, ATM0 ! We doen dit door af en toe de DNS van Skynet te pingen. ! ip sla 1 icmp-echo 195.238.2.21 source-interface ATM0 timeout 1000 threshold 40 frequency 3 ! ! Configure a second OER tracking entry ! Monitoren van de Telenet verbinding. BRI0 ! Hierbij pingen we de DNS van Telenet ! ip sla 2 icmp-echo 195.130.130.11 source-interface BRI0 timeout 1000 threshold 40 frequency 3 ! ! Set the SLA schedule and duration ! ip sla schedule 1 life forever start-time now ip sla schedule 2 life forever start-time now ! ! Define ACLs for traffic that ! will be NATed to the ISP connections !
!!! is is this right ? for smtp traffic !access-list 100 permit ip 192.168.0.0 0.0.0.255 any eq smtp
access-list 110 permit ip 192.168.0.0 0.0.0.255 any
! ! Route-maps associate NAT ACLs with NAT ! outside on the ISP-facing interfaces ! route-map fixed-nat permit 10 match ip address 110 match interface ATM0 ! route-map dhcp-nat permit 10 match ip address 110 match interface BRI0
!!! is is this right ? !route-map smtp-static permit 10 ! match ip address 100 ! set interface BRI0
ip dns server