Re: Sending ICMP echo request out
anil dahiya <[email protected]>
| Newsgroups | org.kernel.vger.linux-newbie,org.kernel.vger.netfilter |
|---|---|
| Message-ID | <CAHGPgw1bL7XF6Ef29N_YQ-dAW3RYQe7j4-2zuWhFXQddW+Yg_g@mail.gmail.com> |
Hi , I have following setup with routing table as shown below: +-----------------------+ | System-1 | | "client" | |------------------------| | 192.168.11.5 | +----------------------+ | | +------+-----+ | Switch +----------------------+ +------+-----+ | | | | +-------------------------+ | | 192.168.11.1 | | |---------------------------| | | Router | | |-------------------------- | | | 192.168.12.1 | | +--------------------------+ | | | | +------------------------+ | | 192.168.11.6 | | |--------------------------| | | System-2 | | |--------------------------| | | 192.168.12.6 | | | |----------------+ +------------------------+ Routing table details of setup ------------------------------------------ System-1 ----- $route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.11.0 0.0.0.0 255.255.255.0 U 1 0 0 eth1 0.0.0.0 192.168.11.1 0.0.0.0 UG 0 0 0 eth1 Router ----------- $route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.12.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.11.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 System-2 ------ $route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.12.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.11.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0.0.0.0 192.168.12.1 0.0.0.0 UG 0 0 0 eth1 When I do ping from system-1 192.168.11.5 to system-2 192.168.12.6 , ping echo packet is reaching on system-2 through NIC 192.168.12.6 but system is not sending any response to 192.168.11.5 using either of NIC i.e 192.168.11.6 or 192.168.12.6 ? Why this is happening ? Can you help me ? I have observed same type of symtoms when I do SSH from 192.168.11.5 to 192.168.12.6 FYI, ip_forwarding is enable on router and iptables are no configured on any of system . Thanks, Anil -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs