----- Original Message -----
From: "Rikki T. Vizcarra" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, October 28, 2002 1:29 PM
Subject: [plug] question on routing using 2 gateways


> My question is, how come, when I route to ISPONE gateway, both connections
> are perfectly fine?  But when I route to ISPTWO gateway, only ISPTWO
> connection can be seen!?

what happening here is that ispone ip block is still routable for outgoing
traffic going to isptwo(except if your isptwo or its ascendants implemented
ingress filtering where to allow only to pass those ip addresses known to
them and drop it otherwise).... upon returning (where the source ip address
is now the destination ip address), it will pass thru to ispone and not to
isptwo... in case you temporarily down your ispone link, you will not
receive any packets coming from ispone segment block even if you change
their default gateway to isptwo...

fooler.

_
Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph
To leave: send "unsubscribe" in the body to [EMAIL PROTECTED]

Fully Searchable Archives With Friendly Web Interface at http://marc.free.net.ph

To subscribe to the Linux Newbies' List: send "subscribe" in the body to 
[EMAIL PROTECTED]

Reply via email to