Forum Discussion
tranchungdt5_93
Nimbostratus
NimbostratusLoadBalance for 2 ISP without SNAT ?
Hi all.
I have a box BIG-IP LTM (with license both of LTM & LinkController ).
I have 2 ADSL as:
---------------- ------------------
- 203.162.0.x - - 210.245.0.y -
---------------- ------------------
| |
VLAN X VLAN Y
| |
| |
---------------------------------------------------
- 203.162.0.1 210.245.0.1 -
- F5 LTM -
- 172.16.1.x
---------------------------------------------------
|
VLAN
server
-------------------------------------------------
I have Vir 203.162.0.10 & Vir 210.245.0.10 for Inbound with SNAT. (Pool is server 's ip add). SNAT make BIG-IP choose correct gate-way to go out.
And the IP forwarding for Server to outbound.
Default-gateway of BIP is pool (203.162.0.1; 210.245.0.1) .
But I wonder that, SNAT make Sever can't collection information about Internet User (ip address).
Can I config LTM without SNAT in this situation ?
Plz, help me.
Chung Tran
2 Replies
- The_BhattmanHi Chung,
Well sounds like the SNAT gives you the ability to choose which gateway you want to go out. However, if you are already NATing your address on the ADSL you should be able configure your both ADSL routes to point to F5 for your inbound. Then I suppose in theory you can remove the SNAT. But this is a guess based on the assumption that you are NATING on each gateway you go out of on the ADSL.
Hope this helps,
CB 
tranchungdt5_93Thank alot CB for answering my question.
But I don't have NATINT in the ADSL line. Can I use attribute "last hop" or Soure Address Persistent to choose the correct Router to outbound ?
Help me, plz.
TC
