Difference between revisions of "NAT Cisco ASA"
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| + | =Outside in - one-to-one nat= | ||
| + | Internal IP: 192.168.138.152 | ||
| + | External IP: 217.198.220.152 | ||
| + | |||
| + | <b>Version 8 ASA</b> | ||
| + | <source lang=cli> | ||
| + | access-list H5MAJ2017 permit ip any host 192.168.138.152 | ||
| + | access-group H5MAJ2017 in interface OUTSIDE | ||
| + | ! | ||
| + | object network OBJ192.168.138.152 | ||
| + | host 192.168.138.152 | ||
| + | nat (INSIDE,OUTSIDE) static 217.198.220.152 | ||
| + | ! | ||
| + | </source> | ||
| + | |||
| + | <b>Version 9 ASA</b> | ||
| + | |||
| + | Ved det ser ud af rigtig meget når man skriver alt det her, men det giver mening i forhold til at holde styr på reglerne i firewallen via det grafiske interface, og det giver nemmere log gennemgang efterfølgende ved evt. fejl. | ||
| + | |||
| + | <i><b>BEMÆRK: </b>Det er bedst at bruge deres ASDM manager til at lave disse regler med.</i> | ||
| + | |||
| + | <b>Objekt</b> | ||
| + | <source lang=cli> | ||
| + | object network 217.198.220.139--SMTP.HOTDATA.DK | ||
| + | host 212.198.213.139 | ||
| + | object network WEB01.HOTDATA.DK | ||
| + | host 192.168.130.3 | ||
| + | </source> | ||
| + | |||
| + | ==NAT REGEL== | ||
| + | ===Original source=== | ||
| + | <source lang=cli> | ||
| + | nat (OUTSIDE,INSIDE) 2 source static any any destination static 217.198.220.139--SMTP.HOTDATA.DK 192.168.130.15--SMTP.HOTDATA.DK no-proxy-arp description SMTP.HOTDATA.DK | ||
| + | </source> | ||
| + | ===Change source address=== | ||
| + | <source lang=cli> | ||
| + | nat (OUTSIDE,INSIDE) 2 source static any interface destination static 217.198.220.139--SMTP.HOTDATA.DK 192.168.130.15--SMTP.HOTDATA.DK no-proxy-arp description SMTP.HOTDATA.DK | ||
| + | </source> | ||
| + | |||
| + | <b>ACCESS LIST</b> | ||
| + | <i>bemærk om der er oprettet en objekt gruppe der dækker det samme behov som du har før du opretter en ny</i> | ||
| + | <source lang=cli> | ||
| + | object-group service <>DM_INLINE_TCP_5 tcp | ||
| + | port-object eq http | ||
| + | port-object eq https | ||
| + | access-list global_access line 4 extended permit tcp any object 192.168.130.30--WEB01.HOTDATA.DK object-group DM_INLINE_TCP_5 | ||
| + | </source> | ||
| + | |||
| + | ==Example== | ||
| + | <source lang=cli> | ||
| + | object network SVPjan18outside | ||
| + | host 217.198.220.151 | ||
| + | object network SVPjan18inside | ||
| + | host 192.168.151.111 | ||
| + | |||
| + | nat (OUTSIDE,INSIDE) 2 source static any any destination static SVPjan18outside SVPjan18inside no-proxy-arp description SVP2018 | ||
| + | nat (OUTSIDE,INSIDE) 2 source static any interface destination static SVPjan18outside SVPjan18inside no-proxy-arp description SVP2018 | ||
| + | </source> | ||
| + | |||
=links= | =links= | ||
*[http://www.petenetlive.com/KB/Article/0000691 One-to-one NAT] | *[http://www.petenetlive.com/KB/Article/0000691 One-to-one NAT] | ||
| + | |||
| + | [[Category:ASA Cisco]] | ||
Latest revision as of 08:16, 8 February 2018
Contents
Outside in - one-to-one nat
Internal IP: 192.168.138.152 External IP: 217.198.220.152
Version 8 ASA
access-list H5MAJ2017 permit ip any host 192.168.138.152
access-group H5MAJ2017 in interface OUTSIDE
!
object network OBJ192.168.138.152
host 192.168.138.152
nat (INSIDE,OUTSIDE) static 217.198.220.152
!Version 9 ASA
Ved det ser ud af rigtig meget når man skriver alt det her, men det giver mening i forhold til at holde styr på reglerne i firewallen via det grafiske interface, og det giver nemmere log gennemgang efterfølgende ved evt. fejl.
BEMÆRK: Det er bedst at bruge deres ASDM manager til at lave disse regler med.
Objekt
object network 217.198.220.139--SMTP.HOTDATA.DK
host 212.198.213.139
object network WEB01.HOTDATA.DK
host 192.168.130.3NAT REGEL
Original source
nat (OUTSIDE,INSIDE) 2 source static any any destination static 217.198.220.139--SMTP.HOTDATA.DK 192.168.130.15--SMTP.HOTDATA.DK no-proxy-arp description SMTP.HOTDATA.DKChange source address
nat (OUTSIDE,INSIDE) 2 source static any interface destination static 217.198.220.139--SMTP.HOTDATA.DK 192.168.130.15--SMTP.HOTDATA.DK no-proxy-arp description SMTP.HOTDATA.DKACCESS LIST bemærk om der er oprettet en objekt gruppe der dækker det samme behov som du har før du opretter en ny
object-group service <>DM_INLINE_TCP_5 tcp
port-object eq http
port-object eq https
access-list global_access line 4 extended permit tcp any object 192.168.130.30--WEB01.HOTDATA.DK object-group DM_INLINE_TCP_5Example
object network SVPjan18outside
host 217.198.220.151
object network SVPjan18inside
host 192.168.151.111
nat (OUTSIDE,INSIDE) 2 source static any any destination static SVPjan18outside SVPjan18inside no-proxy-arp description SVP2018
nat (OUTSIDE,INSIDE) 2 source static any interface destination static SVPjan18outside SVPjan18inside no-proxy-arp description SVP2018