ZyXEL Communications ZyXEL ZyWALL 5 - Manual (Page 654)

ZyWALL 5 User’s Guide
Appendix Q Log Descriptions 653
(L to L/ZW) LAN to LAN/
ZyWALL
ACL set for packets traveling from the LAN to the LAN or
the ZyWALL.
(W to W/ZW) WAN to WAN/
ZyWALL
ACL set for packets traveling from the WAN to the WAN
or the ZyWALL.
(D to D/ZW) DMZ to DMZ/
ZyWALL
ACL set for packets traveling from the DMZ to the DM or
the ZyWALL.
Table 53 ICMP Notes
TYPE CODE DESCRIPTION
0 Echo Reply
0 Echo reply message
3 Destination Unreachable
0 Net unreachable
1 Host unreachable
2 Protocol unreachable
3 Port unreachable
4 A packet that needed fragmentation was dropped because it was set to Don't
Fragment (DF)
5 Source route failed
4 Source Quench
0 A gateway may discard internet datagrams if it does not have the buffer space
needed to queue the datagrams for output to the next network on the route to
the destination network.
5 Redirect
0 Redirect datagrams for the Network
1 Redirect datagrams for the Host
2 Redirect datagrams for the Type of Service and Network
3 Redirect datagrams for the Type of Service and Host
8 Echo
0 Echo message
11 Time Exceeded
0 Time to live exceeded in transit
1 Fragment reassembly time exceeded
12 Parameter Problem
0 Pointer indicates the error
13 Timestamp
0 Timestamp request message
14 Timestamp Reply
Table 52 ACL Setting Notes (continued)
PACKET DIRECTION DIRECTION DESCRIPTION