Table 160 ACL Setting Notes
PACKET DIRECTION | DIRECTION | DESCRIPTION |
|
|
|
(L to W) | LAN to WAN | ACL set for packets traveling from the LAN to the WAN. |
|
|
|
(W to L) | WAN to LAN | ACL set for packets traveling from the WAN to the LAN. |
|
|
|
(L to L) | LAN to LAN/ | ACL set for packets traveling from the LAN to the LAN or |
| ZyXEL Device | the ZyXEL Device. |
(W to W) | WAN to WAN/ | ACL set for packets traveling from the WAN to the WAN |
| ZyXEL Device | or the ZyXEL Device. |
Table 161 | 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 |
Appendix J | 351 |