cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
461
Views
5
Helpful
5
Replies

anyconnect nat multiple isp dynamic ip's

ino
Level 1
Level 1

a c1111 with a build in lte modem (cellular 0/2/0) and a second LTE connection on its WAN port (Gi0/0/0) from a mikrotik modem with lte passthrough

 

GigabitEthernet0/0/0   xx.xxx.183.118  YES DHCP   up                    up
Cellular0/2/0          yy.yyy.200.208  YES IPCP   up                    up

 

 

 

Gateway of last resort is xx.xxx.183.117 to network 0.0.0.0

S*    0.0.0.0/0 [254/0] via xx.xxx.183.117
      xx.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        xx.xxx.183.116/30 is directly connected, GigabitEthernet0/0/0
L        xx.xxx.183.118/32 is directly connected, GigabitEthernet0/0/0
      yy.0.0.0/32 is subnetted, 1 subnets
C        yy.yyy.200.208 is directly connected, Cellular0/2/0

 

 with this i can ping xx.xxx183.118 from outside this settings (gateway of last resort) are from the dhcp

i can not ping yy.yyy.200.208

if a add 

 

ip route 0.0.0.0 0.0.0.0 cellular 0/2/0

 

i can ping it yy.yyy.200.208 but i cant ping xx.xxx.183.118 any longer and i have no internet on connected devices any more

this is the nat of the xx.xxx.200.208

 

ip nat inside source list NAT interface GigabitEthernet0/0/0 overload

 

what i would like is to be able to ping both ip's more correctly to connect to both with anyconnect

and having forwarded ports on both

 

ip nat inside source static tcp 10.0.0.12 123 interface  Cellular0/2/0 123

 

also is it possible to forward both interfaces to the same target???

 

ip nat inside source static tcp 10.0.0.12 123 interface GigabitEthernet0/0/0 123
ip nat inside source static tcp 10.0.0.12 123 interface  Cellular0/2/0  123

 

this will not work the second line will erase the first

both IP are dynamic and can change any time

 

5 Replies 5

you need static route with route-map as following 
ip nat inside  static route-map ISP1 interface <ISP1>
ip nat inside  static route-map ISP2 interface <ISP2>
!
route-map ISP1 permit 10
match ip add 100
match interface <ISP1>
!
route-map ISP2 permit 10
match ip add 101
match interface <ISP2>
!
ip access extended 100 
permit ip < > < >
!
ip access extended 101
permit ip < > < >

ino
Level 1
Level 1

i cant create static nat 

c1111(config)#ip nat ?
  create       Create flow entries
  inside       Inside address translation
  log          NAT Logging
  name         Rule name
  outside      Outside address translation
  pool         Define pool of addresses
  service      Special translation for application using non-standard port
  settings     NAT general settings
  switchover   NAT datapath switchover
  translation  NAT translation entry configuration

 

 

ino
Level 1
Level 1

unless in this way:

route-map LTE-L permit 10
 match ip address 100
 match interface Cellular0/2/0
!
route-map LTE-M permit 10
 match ip address 101
 match interface GigabitEthernet0/0/0
!
ip nat inside source route-map LTE-L interface cellular 0/2/0

if the above is sort of correct i still dont know what to put in here 

ip access extended 100 
permit ip < > < >
!
ip access extended 101
permit ip < > < >

 

all external ip should be able to ping / anyconnect to it (at least for the moment)

and inside / local ip's i am not sure what i would put in there

the secondary connection (at leas for the moment) should not be used for any outgoing connection

 

For now try make it any any,

And then Check the connection,

If success then later you can decide which traffic will use isp1 and which use isp2

But I must mention that the return path can be asymmetric.

ino
Level 1
Level 1

nop

not working

was connected with anyconnect 

after putting the settings in for the build in interface i still could not ping the ip of it

and putting the settings in for the gi0/0/0 broke my vpn connection

will need to reboot / check locally tomorrow as for now i lost connection

not sure why my eem applet  isnt working and reboots the route?!!

 

Review Cisco Networking for a $25 gift card