Re: Bizzare routing table entry.
In the last episode (Aug 07), Modulok said: > I have a bizarre entry in the routing table on one my machines. What > is it, and how do I delete it? The output of "netstat -rnf inet" is > shown below: > > DestinationGatewayFlagsRefs Use Netif Expire > 0&0xc0a80132 link#1 UCS 00 bge0 > 127.0.0.1 127.0.0.1 UH 0 557lo0 > ... > > QUESTIONS > 1. The first entry, it's not IPv4, IPv6 or a MAC address that I've > ever seen, what format is it? It's in IPAddress&Netmask format. $ echo "ibase=16;C0;A8;01;32" | bc 192 168 1 50 Someone probably ran "ifcofig bge0 netmask 192.168.1.50" or some script did it to you. > 2. How do I delete it? According to route(8) it is not a "valid > address" and when I attempt to delete it, route(8) gets very upset: > > root# route delete 0&0xc0a80132 > > [1] 37343 > route: writing to routing socket: No such process > delete net 0: not in table > 0xc0a80132: Command not found. > [1] + Exit 1route delete 0 & is a shell metacharacter; try this: route delete "0&0xc0a80132" -- Dan Nelson [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Bizzare routing table entry.
From: "Josh Carroll" <[EMAIL PROTECTED]>
root# route delete 0&0xc0a80132
[1] 37343
route: writing to routing socket: No such process
delete net 0: not in table
0xc0a80132: Command not found.
[1] + Exit 1route delete 0
root# route delete 0&0xc0a80132
[1] 37343
route: writing to routing socket: No such process
delete net 0: not in table
0xc0a80132: Command not found.
[1] + Exit 1route delete 0
I've no idea whether that is a valid route or not, but the reason
you're getting that funkiness is that the shell is eating the & and
thinks you are sending the route process to the background. Try:
route delete '0&0xc0a80132'
There goes 192.168.1.50.
{^_-}Joanne
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Re: Bizzare routing table entry.
On Tue, 7 Aug 2007 15:37:50 -0700 Chuck Swiger <[EMAIL PROTECTED]> wrote: > On Aug 7, 2007, at 3:13 PM, Adam J Richardson wrote: > > Modulok wrote: > >> 0&0xc0a80132 link#1 UCS 00 bge0 > > > >> 1. The first entry, it's not IPv4, IPv6 or a MAC address that I've > >> ever seen, what format is it? > > > > Hi Modulok, > > > > It's possible to represent IPv4 addresses as a single number. I > > don't recall the algorithm for converting that four byte dot- > > delimited group into an integer, though, so I can't tell you what > > number it is. Perhaps you can Google the algorithm and do the math > > to figure out what it is. > > aaa.bbb.ccc.ddd => 0xAABBCCDD, where AA = hex(aaa), BB = hex(bbb), etc. > In particular, 0xc0a80132 is the hex equivalent of 192.168.1.50. > > An IP address + netmask can normally be represented in the routing > table via the slash notation-- say 192.168.1.50/24 meaning a > 255.255.255.0 (or 0xff00) netmask. Non-contiguous netmasks are > represented by "address & netmask", but since no normal network ever > uses such a netmask, they almost always represent a > misconfiguration-- someone confused the arguments such that the route > command interpreted the gateway IP as a netmask instead. Been there; in my case it was a rogue route added by an ifconfig with an incorrect - as you say, non-contiguous - netmask. In this case it might have been specified/interpreted as 0.0.0.0 netmask 192.168.1.50 ? Cheers, Ian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Bizzare routing table entry.
You guys are sweethearts. We're ship-shape again :) Thanks all who contributed. -Modulok- On 8/7/07, Modulok <[EMAIL PROTECTED]> wrote: > I have a bizarre entry in the routing table on one my machines. What > is it, and how do I delete it? The output of "netstat -rnf inet" is > shown below: > > DestinationGatewayFlagsRefs Use Netif Expire > 0&0xc0a80132 link#1 UCS 00 bge0 > 127.0.0.1 127.0.0.1 UH 0 557lo0 > ... > > QUESTIONS > 1. The first entry, it's not IPv4, IPv6 or a MAC address that I've > ever seen, what format is it? > 2. How do I delete it? According to route(8) it is not a "valid > address" and when I attempt to delete it, route(8) gets very upset: > > root# route delete 0&0xc0a80132 > > [1] 37343 > route: writing to routing socket: No such process > delete net 0: not in table > 0xc0a80132: Command not found. > [1] + Exit 1route delete 0 > > Thoughts? > -Modulok- > ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Bizzare routing table entry.
On Aug 7, 2007, at 3:13 PM, Adam J Richardson wrote: Modulok wrote: 0&0xc0a80132 link#1 UCS 00 bge0 1. The first entry, it's not IPv4, IPv6 or a MAC address that I've ever seen, what format is it? Hi Modulok, It's possible to represent IPv4 addresses as a single number. I don't recall the algorithm for converting that four byte dot- delimited group into an integer, though, so I can't tell you what number it is. Perhaps you can Google the algorithm and do the math to figure out what it is. aaa.bbb.ccc.ddd => 0xAABBCCDD, where AA = hex(aaa), BB = hex(bbb), etc. In particular, 0xc0a80132 is the hex equivalent of 192.168.1.50. An IP address + netmask can normally be represented in the routing table via the slash notation-- say 192.168.1.50/24 meaning a 255.255.255.0 (or 0xff00) netmask. Non-contiguous netmasks are represented by "address & netmask", but since no normal network ever uses such a netmask, they almost always represent a misconfiguration-- someone confused the arguments such that the route command interpreted the gateway IP as a netmask instead. -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Bizzare routing table entry.
Modulok wrote: 0&0xc0a80132 link#1 UCS 00 bge0 1. The first entry, it's not IPv4, IPv6 or a MAC address that I've ever seen, what format is it? Hi Modulok, It's possible to represent IPv4 addresses as a single number. I don't recall the algorithm for converting that four byte dot-delimited group into an integer, though, so I can't tell you what number it is. Perhaps you can Google the algorithm and do the math to figure out what it is. HtH, Adam J Richardson ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Bizzare routing table entry.
On Aug 7, 2007, at 12:10 PM, Modulok wrote: I have a bizarre entry in the routing table on one my machines. What is it, and how do I delete it? The output of "netstat -rnf inet" is shown below: DestinationGatewayFlagsRefs Use Netif Expire 0&0xc0a80132 link#1 UCS 00 bge0 127.0.0.1 127.0.0.1 UH 0 557lo0 ... QUESTIONS 1. The first entry, it's not IPv4, IPv6 or a MAC address that I've ever seen, what format is it? It looks a default IPv4 route using a non-contiguous netmask. It's almost certainly the result of running route with the wrong arguments, rather than something you would intend to do. 2. How do I delete it? According to route(8) it is not a "valid address" and when I attempt to delete it, route(8) gets very upset: root# route delete 0&0xc0a80132 [1] 37343 route: writing to routing socket: No such process delete net 0: not in table 0xc0a80132: Command not found. [1] + Exit 1route delete 0 The "&" is confusing the shell; you can probably do a "route delete default" to nuke it. -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Bizzare routing table entry.
> root# route delete 0&0xc0a80132 > > [1] 37343 > route: writing to routing socket: No such process > delete net 0: not in table > 0xc0a80132: Command not found. > [1] + Exit 1route delete 0 > root# route delete 0&0xc0a80132 > > [1] 37343 > route: writing to routing socket: No such process > delete net 0: not in table > 0xc0a80132: Command not found. > [1] + Exit 1route delete 0 I've no idea whether that is a valid route or not, but the reason you're getting that funkiness is that the shell is eating the & and thinks you are sending the route process to the background. Try: route delete '0&0xc0a80132' And see if it lets you remove the entry. Josh ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Bizzare routing table entry.
I have a bizarre entry in the routing table on one my machines. What is it, and how do I delete it? The output of "netstat -rnf inet" is shown below: DestinationGatewayFlagsRefs Use Netif Expire 0&0xc0a80132 link#1 UCS 00 bge0 127.0.0.1 127.0.0.1 UH 0 557lo0 ... QUESTIONS 1. The first entry, it's not IPv4, IPv6 or a MAC address that I've ever seen, what format is it? 2. How do I delete it? According to route(8) it is not a "valid address" and when I attempt to delete it, route(8) gets very upset: root# route delete 0&0xc0a80132 [1] 37343 route: writing to routing socket: No such process delete net 0: not in table 0xc0a80132: Command not found. [1] + Exit 1route delete 0 Thoughts? -Modulok- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
