Dell Networking N4000 Series User Manual

Configuring Access Control Lists 631
following list has corrected rules that allow Telnet and UDP packets only and
rely on the implicit "deny all" after the end of the last access group to deny
other traffic.
ip access-list Host10-1-1-23
! Permit Telnet traffic from 192.168.0.X network to host 10.1.1.23
permit tcp 192.168.0.0 0.0.0.255 host 10.1.1.23 eq telnet
! Permit UDP traffic from 192.168.0.X network to host 10.1.1.23
permit udp 192.168.0.0 0.0.0.255 host 10.1.1.23
ACLs support TCP and UDP port matching using operators:
ip access-list Host10-1-1-23
! Permit Telnet traffic from 192.168.0.X network to host 10.1.1.23
permit tcp 192.168.0.0 0.0.0.255 host 10.1.1.23 eq telnet
! Permit UDP traffic from 192.168.0.X network to host 10.1.1.23
permit udp 192.168.0.0 0.0.0.255 host 10.1.1.23
ip access-list Host10-1-1-23
! Permit Telnet traffic from 192.168.0.X network to host 10.1.1.23
permit tcp 192.168.0.0 0.0.0.255 host 10.1.1.23 eq telnet
! Permit UDP traffic from 192.168.0.X network to host 10.1.1.23
permit udp 192.168.0.0 0.0.0.255 host 10.1.1.23
The range operator is inclusive of the specified port parameters.
ACLs support TCP flags. If multiple flags are set (+flag) in a single rule, only
packets with the all the same flags asserted are matched (logical AND).
Likewise, if multiple flags are cleared (–flag) in a single rule, only packets with
the same flags cleared are matched. The established keyword matches TCP
packets with either the RST or ACK bits set (logical OR). Flags that are
neither set nor cleared in the rule are not checked in the ACL (don't care or
wildcard).
ip access-list Host10-1-1-23
! Permit Telnet traffic from 192.168.0.X network to host 10.1.1.23
permit tcp 192.168.0.0 0.0.0.255 host 10.1.1.23 eq telnet
! Permit UDP traffic from 192.168.0.X network to host 10.1.1.23
permit udp 192.168.0.0 0.0.0.255 host 10.1.1.23
The following is an example rule to match TCP packets with the PUSH flag
asserted AND the RESET flag cleared. The other flags bits are "don't care":
ip access-list Host10-1-1-23

Dell Networking N4000 Series Specifications

General

Layer	Layer 3
Switching Capacity	Up to 1.28 Tbps
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Series	N4000 Series
Stacking	Up to 12 units
Power Supply	Dual, hot-swappable
Management	Web, CLI, SNMP
Humidity	10% to 90% (non-condensing)