| Access | Type |
|---|---|
| readonly | unknown(0), none(1), other(2), ppp(3), slip(4), frameRelay(5), ciscoHDLC(6), terminalServer(7), telnet(8), rawTCP(9), rlogin(10), l2tp(11), l2f(12), trunk(13), voice(14), tandem(15), hub(16), ftp(17), dvs(18), fax(19), atmp(20), iptest(21) |