Alcatel-Lucent 7710 SR OS Configuration Manual page 415

src-port-number — The source port number to be used as a match criteria expressed as a decimal
range start end — Specifies an inclusive range of port numbers to be used as a match criteria. The
tcp-ack
Syntax tcp-ack {true | false}
no tcp-ack
Context config>filter>ip-filter>entry>match
config>filter>ipv6-filter>entry>match
Description This command configures matching on the ACK bit being set or reset in the control bits of the TCP
header of an IP packet as an IP filter match criterion. Note that an entry containing L4 match criteria
will not match non-initial (2nd, 3rd, etc) fragments of a fragmented packet since only the first
fragment contains the L4 information.
The no form of the command removes the criterion from the match entry.
Default no tcp-ack
Parameters true — Specifies matching on IP packets that have the ACK bit set in the control bits of the TCP
false — Specifies matching on IP packets that do not have the ACK bit set in the control bits of the
tcp-syn
Syntax tcp-syn {true | false}
no tcp-syn
Context config>filter>ip-filter>entry>match
config>filter>ipv6-filter>entry>match
Description This command configures matching on the SYN bit being set or reset in the control bits of the TCP
header of an IP packet as an IP filter match criterion. Note that an entry containing L4 match criteria
will not match non-initial (2nd, 3rd, etc) fragments of a fragmented packet since only the first
fragment contains the L4 information.
The SYN bit is normally set when the source of the packet wants to initiate a TCP session with the
specified destination IP address.
The no form of the command removes the criterion from the match entry.
Default no tcp-syn
7710 SR OS Router Configuration Guide
integer.
Values
0 — 65535
source port numbers start-port and end-port are expressed as decimal integers.
Values
0 — 65535
header of an IP packet.
TCP header of the IP packet.
Filter Policies
Page 415