06-25-2014 10:42 PM
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06-26-2014 12:24 AM
Hi Florian,
If you look at the logging values for icmp denies
Error Message %ASA-3-305006: {outbound static|identity|portmap|regular) translation creation failed for protocol src interface_name : source_address / source_port [( idfw_user )] dst interface_name : dest_address / dest_port [( idfw_user )]
Explanation A protocol (UDP, TCP, or ICMP) failed to create a translation through the ASA. The ASA does not allow packets through that are destined for network or broadcast addresses. The ASA provides this checking for addresses that are explicitly identified with static commands. For inbound traffic, the ASA denies translations for an IP address identified as a network or broadcast address.
The ASA does not apply PAT to all ICMP message types; it only applies PAT ICMP echo and echo-reply packets (types 8 and 0). Specifically, only ICMP echo or echo-reply packets create a PAT translation. As a result, when the other ICMP messages types are dropped, this message is generated.
The ASA uses the global IP address and mask from configured static commands to differentiate regular IP addresses from network or broadcast IP addresses. If the global IP address is a valid network address with a matching network mask, then the ASA does not create a translation for network or broadcast IP addresses with inbound packets.
The ASA responds to global address 10.2.2.128 as a network address and to 10.2.2.255 as the broadcast address. Without an existing translation, the ASA denies inbound packets destined for 10.2.2.128 or 10.2.2.255, and logs this message.
When the suspected IP address is a host IP address, configure a separate static command with a host mask in front of the subnet static command (the first match rule for static commands). The following static commands cause the ASA to respond to 10.2.2.128 as a host address:
The translation may be created by traffic started from the inside host with the IP address in question. Because the ASA views a network or broadcast IP address as a host IP address with an overlapped subnet static configuration, the network address translation for both static commands must be the same.
Recommended Action None required.
Error Message %ASA-6-302020: Built {in | out}bound ICMP connection for faddr { faddr | icmp_seq_num } [( idfw_user )] gaddr { gaddr | cmp_type } laddr laddr [( idfw_user )]
Explanation An ICMP session was established in the fast-path when stateful ICMP was enabled using the inspect icmp command.
Recommended Action None required.
So the similar rule like below would solve your problem.
nat (inside,outside) source static OBJ_INTERNAL OBJ_INTERNAL destination static OBJ_VPN OBJ_VPN no-proxy-arp route-lookup
Regards
Karthik
06-26-2014 12:24 AM
Hi Florian,
If you look at the logging values for icmp denies
Error Message %ASA-3-305006: {outbound static|identity|portmap|regular) translation creation failed for protocol src interface_name : source_address / source_port [( idfw_user )] dst interface_name : dest_address / dest_port [( idfw_user )]
Explanation A protocol (UDP, TCP, or ICMP) failed to create a translation through the ASA. The ASA does not allow packets through that are destined for network or broadcast addresses. The ASA provides this checking for addresses that are explicitly identified with static commands. For inbound traffic, the ASA denies translations for an IP address identified as a network or broadcast address.
The ASA does not apply PAT to all ICMP message types; it only applies PAT ICMP echo and echo-reply packets (types 8 and 0). Specifically, only ICMP echo or echo-reply packets create a PAT translation. As a result, when the other ICMP messages types are dropped, this message is generated.
The ASA uses the global IP address and mask from configured static commands to differentiate regular IP addresses from network or broadcast IP addresses. If the global IP address is a valid network address with a matching network mask, then the ASA does not create a translation for network or broadcast IP addresses with inbound packets.
The ASA responds to global address 10.2.2.128 as a network address and to 10.2.2.255 as the broadcast address. Without an existing translation, the ASA denies inbound packets destined for 10.2.2.128 or 10.2.2.255, and logs this message.
When the suspected IP address is a host IP address, configure a separate static command with a host mask in front of the subnet static command (the first match rule for static commands). The following static commands cause the ASA to respond to 10.2.2.128 as a host address:
The translation may be created by traffic started from the inside host with the IP address in question. Because the ASA views a network or broadcast IP address as a host IP address with an overlapped subnet static configuration, the network address translation for both static commands must be the same.
Recommended Action None required.
Error Message %ASA-6-302020: Built {in | out}bound ICMP connection for faddr { faddr | icmp_seq_num } [( idfw_user )] gaddr { gaddr | cmp_type } laddr laddr [( idfw_user )]
Explanation An ICMP session was established in the fast-path when stateful ICMP was enabled using the inspect icmp command.
Recommended Action None required.
So the similar rule like below would solve your problem.
nat (inside,outside) source static OBJ_INTERNAL OBJ_INTERNAL destination static OBJ_VPN OBJ_VPN no-proxy-arp route-lookup
Regards
Karthik
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