01-01-2012
I have fulfilled as what redbook said:
1. base IP in different subnet
2. service IP on different subnet from base IP
3. service IP can be in same or different subnet
4. persistent IP can be in same or different subnet from service IP
Lets dont discuss on how I form the etherchannel, you can just assume it is single interface en0 and en1, with no etherchannel behind.
The redbook did not mention what will happen if persistent and service IP with same subnet lies on different interface, and I would like to know if it puts negative effect on hacmp or on AIX.
Lets make the environment looks like this:
en0
1.2.3.4 <-boot IP
192.168.1.1 <-persistent IP
en1
2.3.4.5 <-boot IP
192.168.1.10 <-service IP
What will happen if persistent IP got the same subnet as service IP, while they lies on different interfaces (en0 and en1) ?
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LEARN ABOUT DEBIAN
ipsec_samesaid
IPSEC_SAMEADDR(3) Library Functions Manual IPSEC_SAMEADDR(3)
NAME
ipsec_sameaddr, ipsec_addrcmp, ipsec_samesubnet, ipsec_addrinsubnet, ipsec_subnetinsubnet, ipsec_subnetishost, ipsec_samesaid,
ipsec_sameaddrtype, ipsec_samesubnettype - do comparisons for addresses, subnets, SA IDs and address families
SYNOPSIS
#include <freeswan.h>
int sameaddr(const ip_address *a, const ip_address *b);
int addrcmp(const ip_address *a, const ip_address *b);
int samesubnet(const ip_subnet *a, const ip_subnet *b);
int addrinsubnet(const ip_address *a, const ip_subnet *s);
int subnetinsubnet(const ip_subnet *a, const ip_subnet *b);
int subnetishost(const ip_subnet *s);
int samesaid(const ip_said *a, const ip_said *b);
int sameaddrtype(const ip_address *a, const ip_address *b);
int samesubnettype(const ip_subnet *a, const ip_subnet *b);
DESCRIPTION
These functions do various comparisons and tests on the ip_address type and ip_subnet types.
Sameaddr returns non-zero if addresses a and b are identical, and 0 otherwise. Addresses of different families are never identical.
Addrcmp returns -1, 0, or 1 respectively if address a is less than, equal to, or greater than b. If they are not of the same address fam-
ily, they are never equal; the ordering reported in this case is arbitrary (and probably not useful) but consistent.
Samesubnet returns non-zero if subnets a and b are identical, and 0 otherwise. Subnets of different address families are never identical.
Addrinsubnet returns non-zero if address a is within subnet s and 0 otherwise. An address is never within a subnet of a different address
family.
Subnetinsubnet returns non-zero if subnet a is a subset of subnet b and 0 otherwise. A subnet is deemed to be a subset of itself. A sub-
net is never a subset of another subnet if their address families differ.
Subnetishost returns non-zero if subnet s is in fact only a single host, and 0 otherwise.
Samesaid returns non-zero if SA IDs a and b are identical, and 0 otherwise.
Sameaddrtype returns non-zero if addresses a and b are of the same address family, and 0 otherwise.
Samesubnettype returns non-zero if subnets a and b are of the same address family, and 0 otherwise.
SEE ALSO
inet(3), ipsec_initaddr(3)
HISTORY
Written for the FreeS/WAN project by Henry Spencer.
28 Nov 2000 IPSEC_SAMEADDR(3)