The “triangle route” solutions, Ip aliasing – ZyXEL Communications ZyXEL ZyWALL 2WE User Manual
Page 349
ZyWALL 2 and ZyWALL 2WE
Triangle Route
17
Diagram C-2 “Triangle Route” Problem
The “Triangle Route” Solutions
This section presents you two solutions to the “triangle route” problem.
IP Aliasing
IP alias allows you to partition your network into logical sections over the same Ethernet interface. Your
ZyWALL supports up to three logical LAN interfaces with the ZyWALL being the gateway for each logical
network. By putting your LAN and Gateway B in different subnets, all returning network traffic must pass
through the ZyWALL to your LAN. The following steps describe such a scenario.
Step 1.
A computer on the LAN initiates a connection by sending a SYN packet to a receiving server on
the WAN.
Step 2.
The ZyWALL reroutes the packet to Gateway B, which is in Subnet 2.
Step 3.
The reply from WAN goes through the ZyWALL to the computer on the LAN in Subnet 1.
Diagram C-3 IP Alias
- ISDN Terminal Adapter Omni.Net Lite (84 pages)
- ZYAIR G-360 V2 (2 pages)
- DMA-1000 Series (192 pages)
- PLA-450 (2 pages)
- EXT-108 (2 pages)
- P-2602HWLNI (496 pages)
- ZyXEL ZyWALL 2WG (730 pages)
- P841C (41 pages)
- Network Device P-2302 (359 pages)
- P-870M-I (2 pages)
- P-661HW Series (383 pages)
- Prestige 310 (161 pages)
- 802.11g Wireless Access Point ZyXEL G-560 (144 pages)
- P-2602HW (2 pages)
- Prestige 2602R Series (450 pages)
- 5 Series (835 pages)
- Prestige 623ME-T (253 pages)
- omni.net LCD series (53 pages)
- ZyXEL ZyAIR B-1000 (231 pages)
- P-2302HWUDL-P1 Series (368 pages)
- ZyXEL ZyWALL 5 (667 pages)
- Prestige 645R (180 pages)
- ZYWALL IDP 10 (42 pages)
- 802.11g Wireless Firewall Router P-320W (215 pages)
- PRESTIGE 660R-6XC (6 pages)
- 56K Plus II (88 pages)
- P-2802HW-i (2 pages)
- ZYAIR AG-200 (2 pages)
- POWERLINE PL-100 (33 pages)
- HomePlug AV DMA-1100P (198 pages)
- Access Router P-660R-T (9 pages)
- omni.net LCD+M (186 pages)
- G-162 (85 pages)
- PL-100 (33 pages)
- ZyXEL ZyAIR A-6000 (46 pages)
- ZyXEL ZyAIR AG-225H (14 pages)
- 2304R-P1 (124 pages)
- XTREMEMIMO M-302 (2 pages)
- nbg334s (2 pages)
- P-793H 601156 (1 page)
- Ethernet Extension Card EEC1020 (8 pages)
- P-871M (26 pages)
- Prestige 128L (114 pages)
- P-2812HNU-51c (2 pages)
- ZyWALL SSL 10 (64 pages)