> -----Original Message----- > From: netfilter-bounces@xxxxxxxxxxxxxxxxxxx [mailto:netfilter- > bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Julian Hagenauer > Sent: Monday, June 05, 2006 7:28 AM > To: netfilter@xxxxxxxxxxxxxxxxxxx > Subject: Redirecting traffic from a non-existent IP > > Hi, > i am running Linux 2.6.11.12-xen0 (binary distribution). > I want to route all Traffic destined to 192.168.1.5 to 192.168.1.3. > 192.168.1.5 is a non-existent IP/host, 192.168.1.3 is a Xen-VM running > on localhost, so 192.168.1.5 should act as a kind of alias for > 192.168.1.3 and be accessible from localhost. > The following modules are loaded: > > Module Size Used by > iptable_filter 2432 0 > iptable_nat 19932 1 > ip_conntrack 38712 1 iptable_nat > ip_tables 20352 2 iptable_filter,iptable_nat > intel_agp 20124 1 > agpgart 28968 1 intel_agp > > > I wrote and ran the following script on localhost: > > #!/bin/bash > echo 1 > /proc/sys/net/ipv4/ip_forward > MAP_FROM=192.168.1.5 # virtuelle IP > MAP_TO=192.168.1.3 # IP einer VM > iptables -t nat -F > echo "Mappe $MAP_FROM nach $MAP_TO..." > iptables -t nat -A PREROUTING -d $MAP_FROM -j DNAT --to $MAP_TO > echo "Aktuelle Nat-Regeln:" > iptables -t nat -L > > But ping 192.168.1.5 or ssh 192.168.1.5 still does not work. > I have no clue what's wrong. > Well, unless something is answering ARP requests on 192.168.1.5, your other hosts have no idea which layer 2 address to direct their traffic to. Why not just add that address as a secondary address on your box: ip addr add 192.168.1.5/24 dev eth1 That seems like a much simpler solution. Eliot Gable Certified Wireless Network Administrator (CWNA) Certified Wireless Security Professional (CWSP) Cisco Certified Network Associate (CCNA) CompTIA Security+ Certified CompTIA Network+ Certified Network and System Engineer Great Lakes Internet, Inc. 112 North Howard Croswell, MI 48422 (810) 679-3395 (877) 558-8324 Now offering Broadband Wireless Internet access in Croswell, Lexington, Brown City, Yale, Worth Township, and Sandusky. Call for details.
