what's your routing table look like ? On Tue, Nov 3, 2009 at 1:05 PM, [email protected] <[email protected]>wrote:
> I know there's a reason for this, I'm just not sure and was hoping someone > here would. > > I have two networks. > Network A - 10.0.0.0/24 > Network B - 192.168.111.0/24 > > There is a gateway at 10.0.0.254 that is used for a specific connection to > the gateway at 192.168.111.1 and the 192.168.111.0/24 network in general. > Network A also has another gateway that is used for EVERYTHING else (main > internet), that gateway is 10.0.0.1. > > Here's what had me confused... > > From a PC-A (192.168.111.200) in Network B, I could ping Server XYZ > (10.0.0.8)in Network A successfully. However, trying to do anything other > thing pinging led to very intermittent results (what triggered this was > trying to access the Exchange 2007 mail server on ServerXYZ from PC-A, the > Outlook profile wouldn't resolve the username). > > For example... > * I could only intermittently (1 try out of 8 or so) telnet over port 25 > into Server XYZ. > * Opening up SMB shares (\\ServerXYZ) would take a really long time > * Trace routing to ServerXYZ from PC-A mostly resulted in 3 hops. And > about 20% of the time resulted in 4 hops (the extra hop ended up being the > 10.0.0.1 gateway). > > The strange/different traceroutes had me confused. I did a tracert from > ServerXYZ to PC-A and the first hop was 10.0.0.1. The 10.0.0.1 router > (Forefront server) HAS a route to 192.168.111.0/24 via 10.0.0.254. > > I fixed all these issues by adding a static and persistent route on > ServerXYZ to 192.168.111.0/24 via 10.0.0.254. > > Since doing so... From PC-A, I no longer have issues with Outlook client, > or telnetting over port 25, or accessing SMB shares on ServerXYZ. > > Yet, the entire time before making the routing change, I *WAS* able to PING > ServerXYZ (by IP and DNS) from PC-A. > > I am looking for input as to what was really going on here, heh. (I think > it has something to do with pinging being different in the way it can be > resolved versus other network protocols?) > > Thanks! > > > > > -------------------------------------------------------------------- > mail2web.com – Enhanced email for the mobile individual based on > Microsoft® > Exchange - http://link.mail2web.com/Personal/EnhancedEmail > > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
