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translation issue


suppose there is one host who is accessing two different servers in the network.

when host A access to host B all we have to do is make sure that it gets to talk to it one to one thus i configure this

static (inside,outside) tcp 60.x.x.72 3392 3392 netmask

static (inside,outside) tcp 60.x.x.72 3394 3394 netmask

access-list acl_out_in permit tcp host 20.x.x.4 host eq 3392

access-list acl_out_in permit tcp host 20.x.x.4 host eq 3394

and host A can connect to host B with success no problem at all.

Now, when host A try to connect to host C we not only have to nat/translate the source IP of this host but also the like host B scenario that it should be one to one with it, so i configure the following

static (outside,inside) 20.x.x.4 netmask

static (inside,outside) 60.x.x.72 netmask

access-list acl_out_in permit tcp host 60.x.x.72 host eq 6003

host A connects to host C successful and no problem.

the issue i have here is that when i see the netstat of host B it shows that the host A (remote host ip address is) whereas it should be it orginal source ip address.

so is there a way it can be done or is it the firewall itself that it's not possible and it would be causing any problem in connection, cuz currently on random times the connection drops automaticaly btw host A and host B, so i assume it is because of this issue.

any help would be great


Re: translation issue


Why do you need

static (outside,inside) 20.x.x.4 netmask

If you remove it and clear xlate, I believe you should be fine!



Re: translation issue


i need it in such a way that when access from the outside to inside particular server, the source ip address should get translated to, as the server inside is configured to only allow access from specific ip addresses from internal subnet and is one of it.

anyways, i did this and it sort of worked but if there is any other way of doing it please do tell.

access-list NAT_ONE permit ip host host

static (outside,inside) access-list NAT_ONE

static (inside,outside) netmask

static (inside,outside) netmask

what it did was that when traffic coming from to is tranlated the source ip to as it should

and when traffic coming from to it creats one-to-one map as per the static defined and doesn't tranlate the source ip.


Re: translation issue

hi everyone,

i need advise n help, please tell me say something

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