Bug 132520
| Summary: | No loopback route after initscripts update (to RHEL3 U3) | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 3 | Reporter: | Robert Scheck <redhat-bugzilla> |
| Component: | initscripts | Assignee: | Bill Nottingham <notting> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3.0 | CC: | rvokal |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2004-09-15 20:06:38 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
|
Description
Robert Scheck
2004-09-14 12:07:51 UTC
It's not needed. Do you have something specific that is failing? Nope, not really. But every documentation I can find on the Internet is telling, that I've got to have a loopback route, but it also works without. It seems that the Linux kernel has burned-in the loopback route also at version 2.4. The other reason for opening this bug was, that I had my nerving customer's breathe down on my neck... Maybe for others having the same "problem": --- snipp RHEL U2 --- # RHEL U2, old initscripts having a loopback route: [root@rhel3 root]# netstat -in Kernel Interface table Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 24 0 0 0 4 0 0 0 BMRU lo 16436 0 4 0 0 0 4 0 0 0 LRU [root@rhel3 root]# ping localhost PING rhel3 (127.0.0.1) 56(84) bytes of data. 64 bytes from rhel3 (127.0.0.1): icmp_seq=0 ttl=0 time=0.063 ms 64 bytes from rhel3 (127.0.0.1): icmp_seq=1 ttl=0 time=0.029 ms --- rhel3 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1016ms rtt min/avg/max/mdev = 0.029/0.046/0.063/0.017 ms, pipe 2 [root@rhel3 root]# netstat -in Kernel Interface table Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 24 0 0 0 4 0 0 0 BMRU lo 16436 0 8 0 0 0 8 0 0 0 LRU [root@rhel3 root]# --- snapp RHEL U2 --- --- snipp RHEL U3 --- # RHEL U3, new initscripts having no loopback route: [root@rhel3 root]# netstat -in Kernel Interface table Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 67 0 0 0 7 0 0 0 BMRU lo 16436 0 8 0 0 0 8 0 0 0 LRU [root@rhel3 root]# ping localhost PING rhel3 (127.0.0.1) 56(84) bytes of data. 64 bytes from rhel3 (127.0.0.1): icmp_seq=0 ttl=0 time=0.065 ms 64 bytes from rhel3 (127.0.0.1): icmp_seq=1 ttl=0 time=0.051 ms --- rhel3 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1016ms rtt min/avg/max/mdev = 0.051/0.058/0.065/0.007 ms, pipe 2 [root@rhel3 root]# netstat -in Kernel Interface table Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 67 0 0 0 7 0 0 0 BMRU lo 16436 0 12 0 0 0 12 0 0 0 LRU [root@rhel3 root]# --- snapp RHEL U3 --- Independent from the loopback route the corresponding packages to 127.0.0.1 are always routed about the loopback device as showed above. I'll close my bug report with notabug, but I'll also reopen it sooner as you can think, if I really get problems related with this... ;-) |