3com 8807 Guia De Referência

Página de 1099
226
C
HAPTER
 16: ACL C
OMMANDS
source { source-addr wildcard | any }: source-addr wildcard specifies the source IP 
address and wildcard digit of source address represented in dotted decimal 
notation. any represents all source addresses.
fragment: It is only effective to fragmented messages and is ignored by 
non-fragmented messages.
vpn-instance instance-name: VPN instance name. The specified MPLS VPN 
packets will be identified if this parameter is selected.
Parameters specific to advanced ACLs:
protocol: Specifies the protocol type which is represented by a name or a number. 
For name format, the options include icmp, igmp, tcp, udp, ip, gre, ospf, ipinip 
etc. The IP parameter represents all IP protocols. For number format, the value 
ranges from 1 to 255.
source { source-addr wildcard | any }: source-addr wildcard specifies the source IP 
address and wildcard digit of source address represented, in dotted decimal 
notation. any represents all source addresses.
destination { dest-addr wildcard | any }: dest-addr wildcard specifies the 
destination IP address and wildcard digit of destination address represented, in 
dotted decimal notation. any represents all destination addresses.
source-port operator port1 [ port2 ]: Source TCP or UDP port ID of the packet. 
operator means port operator, with options including eq (equal to), gt (greater 
than), lt (less than), neq (not equal to) and range (in the range of). Note that it 
appears only when the protocol parameter is set as TCP or UDP. port1 [ port2 ] 
stands for source TCP or UDP port ID of the packet, in characters or digits. Digital 
value ranges from 0 to 65535. For character options, see the port ID mnemonic 
symbol list. Only for the range operator, both port1 and port2 are active. For the 
rest operators, only port1 is required.
destination-port operator port1 [ port2 ]: Destination TCP or UDP port ID of the 
packet. See source-port operator port1 [ port2 ] for detailed description.
icmp-type type code: It is active when the protocol is set as icmp. type code 
specifies an ICMP packet. type indicates ICMP packet type, in characters or digits. 
The digital value ranges from 0 to 255. code is ICMP code, which is active when 
ICMP is selected and the ICMP packet type is expressed in the numeral format. It 
ranges from 0 to 255. This parameter is used to define an EACL.
Table 31   Relationship of type and code
ICMP packet type (TYPE) 
ICMP packet type (TYPE) 
ICMP code (CODE) 
echo 
echo 
fragmentneed-DFset 
host-redirect 
host-tos-redirect 
host-unreachable 
information-reply 
16